A

A Amber
A Air
A Alternate
A Area
A/BRK Autobrake
A/C Aircraft
A/COLL Anti-Collision
A/D Analog/Digital
A/DC Analog-to-Digital Converter
A/F Auto Flight
A/G Air to Ground
A/L Airline
A/N Alphanumeric
A/N SIZE Alpha Numeric Size
A/R Audio Reproducer
A/S Airspeed
A/S Auto Stabilization
A/SKID Anti-Skid
A/STAB Auto Stabilizer
A/T Adjustment/Test
A/THR Autothrust
A/W Airworthiness
A/XFMR Autotransformer
A.ICE Anti-ice
A.ICE Anti-icing
A|P Airbus|People
A2P Assurance, Prevention, Protection
AA Airworthiness Authorities
AA Arithmetical Average
AA Aviation Authorities
AAA Airworthiness Approval Attestation
AAAH Airbus Approved Abbreviations Handbook
AAC Airline Administrative Communications
AACD Aeronautical Administrative Communication Domain
AAD Aircraft Airworthiness Dossier
AADC Analog Air Data Computer
AAI Aircraft Accident and Incident Investigation
AAIB Aviation Accident Investigation Board
AAL Above Aerodrome Level
AAM Airbus Acceptable Mass
AAMD Aeronautical Administrative Maintenance Domain
AAMG Airbus Application Management Group
AAP Additional Attendant Panel
AAP Aft Attendant Panel
AAT Aircraft Allocation Table
ABBR Abbreviation
Airbus Abbreviations Dictionary
ABCD Airbus Collective Data Dictionary
ABCM Alternate Brake Control Manifold
ABCU Alternate Braking Control Unit
ABD Airbus Directive and Procedure
ABDC Avionics Broadcast Data Collector
ABEC Airbus (Beijing) Engineering Centre Company Limited
ABM APU Build-up Manual
ABM Abeam
ABN Abnormal
ABNORM Abnormal
ABO Airbus Business Organization
ABP Airbus Business Process
ABPM Avionics Bare Processing Module
ABR Airbus Business Requirement
ABRN Airborne
ABS Autobrake System
ABS Airbus Standard
ABS Airbus Specification
ABSELV Alternate Brake Selector Valve
ABSORB Absorber
ABS VAL Absolute Value
ABTS Avionics Blowing Temperature Sensor
ABV Above
AC Aircraft Characteristics - Airport and Maintenance Planning
AC Alternating Current
AC Advisory Circular
AC Actual Cost
AC_ICD Airbus Container for Inter-Communication Data
ACARE Advisory Council for Aeronautics Research in Europe
ACARS Aircraft Communication Addressing and Reporting System
ACAS Airborne Collision Avoidance System
ACC Active Clearance Control
ACC Area Control Center
ACC Aircraft Configuration Control
ACCEL Acceleration/Accelerate
ACCESS Accessory
ACCLRM Accelerometer
ACCU Accumulator
ACCUR Accuracy
ACD Additional Control Device
ACD Airframe Certification Document
ACD Airworthiness Certification Dossier
ACD Aircraft Control Domain
ACDB Aircraft Component Data Base
ACE Airbus Concurrent Engineering
ACE Altimeter Control Equipment
ACFT Aircraft
ACFU Aircraft Check Follow Up
ACG Aircraft Center of Gravity
ACG Airbus Configuration Guide
ACGS Aircraft GSM Server
ACIA Asynchronous Communications Interface Adaptor
ACJ Advisory Circular-Joint
ACK Acknowledge
ACL Aircraft Configuration List
ACLSP Aircraft Loadable Software Part
ACM Air Cycle Machine
ACM Abbreviated Component Maintenance Manual
ACM Aircraft Configuration Matrix
ACM Aircraft Conversion Manual
ACMB Aircraft Configuration Management Board
ACMF Aircraft Condition Monitoring Function
ACMM Abbreviated Component Maintenance Manual
ACMM Aircraft Configuration Meta Model
ACMP Airframe Condition Monitoring Procedure
ACMR Aircraft Configuration Management Rules
ACMS Aircraft Condition Monitoring System
ACMS-RT ACMS-Real Time
ACMS-SA ACMS-Server Application
ACMT Aircraft Component Management Team
ACN Aircraft Classification Number
A-CN Airbus China
ACO Airworthiness Certification Office
ACOB Automatic Call Out Box
ACOC Air Cooled Oil Cooler
ACP Area Call Panel
ACP Audio Control Panel
ACP Altimeter Check Point
ACQ Acquire
ACQN Acquisition
ACR Avionics Communication Router
ACR Allocation Change Request
ACRIF ACR Instrumentation Function
ACRS Avionics Communication Routing System
ACRT Additional Cross Reference Table
ACS Access
ACS Alternating Current Supply
ACS Airbus Contracted Supplier
ACSA Atelier du Calculateur en Structure A�ronautique
ACSC Air Conditioning System Controller
ACT Active
ACT Additional Center Tank
ACT Activity
ACT Applicability Cross-reference Table
ACT AIRBUS COMPETENCE TRAINING
ACTD Actuated
ACTG Actuating
ACTIV Active
ACTN Action
ACTR Actuator
ACTUAL Aircraft Configuration of Tracked Units at Aircraft Level
ACTVN Activation
ACTVT Activate
ACU Air Cooling Unit
ACU Antenna Coupler Unit
ACU Antenna Control Unit
ACU Alpha Call-Up
ACUTE Airbus Cockpit Universal Thrust Emulator
ACVR Alternating Current Voltage Ratio
ACWP Actual Cost of Work Performed
AD Aerodrome
AD Airplane Datum
AD Airworthiness Directive
AD Active Directory
AD Accidental Damage
A-D Airbus Deutschland
A-D Airbus Deutschland
ADAM Airbus Spares Distribution and Materials System
ADAP As Designed As Planned
ADAP-PS As-Defined/As-Planned Product Structure
ADAU Auxiliary Data Acquisition Unit
ADB Airport DataBase
ADB Area Distribution Box
ADB Aeronautical DataBase
ADB Automatic Differential Braking
ADC Air Data Computer
ADC Airbus Delivery Centre
ADCL Airworthiness Directives Compliance List
ADCN Avionics Data Communication Network
ADCOMS Advanced Configuration Management System
ADCSIP Acceptance and Delivery Customer Satisfaction Improvement
Programme
ADD Addition
ADD Additional
ADD Aircraft Description Data Base
ADD Aircraft Design Declaration
ADD Aircraft Description Document
ADD BY Added By
ADF Automatic Direction Finder
ADFP Airbus Domain Focal Point
ADFR Automatic Deployable Flight Recorder
ADG Air Driven Generator
ADGB Active Differential Gearbox
ADHF Adaptive Dropped Hinge Flap
ADI Attitude Director Indicator
ADIRS Air Data/Inertial Reference System
ADIRU Air Data/Inertial Reference Unit
ADIS AFDX and Digital Injection System
ADJ Adjust
ADJMT Adjustment
ADL Airborne Data Loader
ADL Aircraft Data Loader
ADL Allowable Damage and Limitations
ADL Applicable Documents List
ADLU Airborne Data Loading Unit
ADM Air Data Module
ADM Administrative Files
ADMZ Aircraft DeMilitarized Zone
ADNS Airbus Document Numbering Service
ADO Airbus Documentation Office
ADOM Approved Deviation to Operational suitability data Master
minimum equipment list
ADOPT Airbus Design and Operational Philosophy in Training
ADPM Aircraft Deactivation Procedures Manual
ADPTN Adaptation
ADPTR Adapter
ADR Air Data Reference
ADR Advisory Route
ADRES Aircraft Documentation Retrieval System
ADRS Address
ADS Air Data System
ADS Automatic Dependent Surveillance
ADS Airbus Document Services
ADS Aircraft maintenance Documentation System
ADS-B Automatic Dependent Surveillance-Broadcast
ADS-C Automatic Dependent Surveillance-Contract
ADSM Avionics Data Storage Module
ADU Area Distribution Unit
ADU Align Display Unit
ADV Advisory
AD� Advancement Degree of Difficulty
A-E Airbus Espana
AEB Airline Engineering Bulletin
AECI Airbus Engineering Center India
AECM Alternate Extension Control Module
AECMA The European Association of Aerospace Industries
AEDS Axle Equipment Drive Shaft
AEDS Airbus Enterprise Directory Service
AEEC Airlines Electronic Engineering Committee
AER Aircraft Event Report
AER Applicable External Requirement
AERO Aviation Routine Weather Report
AES Aircraft Earth Station
AESS Aircraft Environment Surveillance System
AESU Aircraft Environment Surveillance Unit
AEVC Avionics Equipment Ventilation Computer
AEX Access Authorized
AF Audio Frequency
AF Acceptance Flight
AF All Freighter
AF DME Arc to Fixed Waypoint
A-F Airbus France
AFB Antifriction Bearing
AFC Automatic Frequency Control
AFCD Aft Cargo Door
AFCS Automatic Flight Control System
AFDX Avionics Full Duplex Switched Ethernet
AFECU Automatic Fire Extinguishing Control Unit
AFFECTD Affected
AFFIRM Affirmative
AFI Aircraft Fault Isolation
AFIS Airline In Flight Information System
AFL Auto Flush
AFM Airplane Flight Manual
AFMC Auxiliary Fuel Management Computer
AFMR Airframer
AFN ATS Facilities Notification
AFP Advanced Fiber Placement
AFR Airframe
AFR Aircraft Fault Reporting
AFRP Aramid Fiber Reinforced Plastic
AFS Automatic Flight System
AFSA Airbus France Standard Architecture
AFTN Aeronautical Fixed Telecommunication Network
AFTR After
AFTS Airbus Flight Test School
AFU Artificial Feel Unit
AG Ageing
AGB Accessory Gearbox
AGB Angle Gearbox
AGC APU Generator Contactor
AGC Automatic Gain Control
AGE Aircraft Ground Equipment
AGG Airbus General Guide
AGL Above Ground Level
AGLC APU Generator Line Contactor
AGMT Augment
AGP Alternate Gauging Processor
AGS Air Generation System
AGS Aircraft GSM Server
AGS Aircraft General Stores
AGT Agent
AGU Air Generation Unit
AGW Actual Gross Weight
AHP Anti-Hijacking Panel
AHRS Attitude and Heading Reference System
AHRU Attitude and Heading Reference Unit
AI Anti-Icing
AIB Airbus Industrie
AIB Accident/Incident Investigation Board
AIBU Advanced Illumination Ballast Unit
AIC Access Illustration Cards
AIC Airbus Integrated Company
AIC Accident/Incident Investigation Committee
AICC Aviation Industry CBT Committee
A-ICE Anti-Ice
AICF Anti Ice Control Function
AICS Anti Ice Control System
AICU Anti Ice Control Unit
AID Aircraft Installation Delay
AIDA Airbus Industrie Drawing Access
AIDA Attestation Integrated Delta Aggregation
AIDS Aircraft Integrated Data System
AIF Aircrew Information Folder
AIG Accident Investigation
AIL Aileron
AIM Aircraft Integrated Maintenance
AIM Airbus Military
AIM/CRM Airbus Integrated Management/Cockpit Resource
Management
AIME Autonomous Integrity Monitored Extrapolation
AIM-FANS Airbus Interoperable Modular-Future Air Navigation Sys
AIMI Avionics Information Management Interface
AIMS Airbus Improvement Management System
AIMS Airbus Material Specification
AIMS Airbus Inventory Management System
AIN Airbus Integrated Network
A-IN Airbus India
AINA Airbus North America
AINS Aircraft Information Network System
AIP Attendant Indication Panel
AIP Aeronautical Information Publication
AIP Accident/Incident Investigation Panel
AIP Airbus Internal Part
AIP Archival Information Package
AIPC Aircraft Illustrated Parts Catalog
AIPI Airbus Process Instruction
AIPR Avionic Internal Parameter Requestor
AIPS Airbus Process Specification
AIQI Airbus Industrie Quality Instruction
AIR Aircraft Inspection Report
AIRAC Aeronautical Information Regulation And Control
AirCAM Airworthiness and Certification Activities Management
AIRCOND Air Conditioning
AIRMAN Aircraft Maintenance Analysis
AIRNet Airbus International Research Network
AIRTAC AIRbus Technical AOG Center
AIRTEC Airbus Technical AOG Center
AirTHM Airbus Real Time Health Monitoring
AIS Audio Integrated System
AIS Aeronautical Information Service
AISD Airline Information Services Domain
AISI American Iron and Steel Institute
AISI Airbus Information Security Instruction
AISS Aeronautical Information Systems Security
AIT Accident Information Telex
AIT Accident Information Transmission
AITM Airbus Test Method
AIU Aircraft Interface Unit
AJD ALI Justification Document
AJD1 Airworthiness Limitation Section (ALS) Part 1 Justification
Document
AKC Assembly Key Characteristic
AL Airline
ALBATROS Airbus Link Base A380 Target Real Or Simulated
ALE Automatic Link Establishment
ALERFA Alert Phase
ALF Aft Looking Forward
ALFA Aircraft Level Functional Approach
ALHP Airframe Life-History Program
ALI Airworthiness Limitation Item
ALI Airbus Lead Investigator
ALIGN Alignment
ALIGND Aligned
ALLWD Allowed
ALM Application Landscape Management
ALM Additive Layer Manufacturing
ALNA Airline Network Architecture
ALPHA Angle-of-Attack
ALPHANUM Alphanumerical
ALPS Aircraft Lease Portfolio Securitisation
ALS Approach Light System
ALS Airworthiness Limitation Section
ALSCU Auxiliary Level Sensing Control Unit
ALT Altitude
ALT ACQ Altitude Acquire
ALTM Altimeter
ALTN Alternate
ALTN Alternative
ALT REFF Alternate to a Retraction, Extension and/or Free Fall test
ALT TO Alternate To
ALTU Annunciator Light Test Unit
ALU Arithmetic and Logic Unit
AM Amplitude Modulation
AM Airbus Means and Methods
AM Accountable Manager
AMAM Airbus MSG-3 Analysis Management
AMB Ambient
AMBOS Airbus Manufacturing Business Operational Support
AMC Acceptable Means of Compliance
AMD Aircraft Maintenance Description
AMDB Airport Mapping DataBase
AMDT Amendment
AME Amplitude Modulation Equivalent
AMEX Avionics Message Exchanger
AMF Avionics Messaging Forwarder
AMI Airline Modifiable Information
AMII Airlines Maintenance Inspection Intervals
AMISA Advanced Model-Integrated Specifications for Airbus
AMJ Advisory Material-Joint
AMM Aircraft Maintenance Manual
AMM Ammeter
AMOC Alternative Method Of Compliance
AMP Amperage
AMP Ampere
AMP Avionics Maintainability Plan
AMP Aircraft Maintenance Procedure
AMPL Amplifier
AMS Air-ground Message Server
AMS Aeronautical Material Specifications
AMS Aerospace Material Specification
AMS Aircraft Modification Status
AMS Additive Manufacturing Solutions
AMSL Airbus Military Sociedad Limitada
AMSP Alternative Manufacturing Solution Proposal
AMTOSS Aircraft Maintenance Task Oriented Support System
AMU Audio Management Unit
AN Air Navigation
A-NA Airbus North America
ANAC Agencia Nacional de Avia��o Civil
ANCE Announce
AND Aircraft Nose Down
ANDT Aircraft Non Destructive Test
ANF Airport Navigation Function
ANI Analog Input
ANLG Analogic
ANN Annunciator
ANNCE Announce
ANNCMT Announcement
ANN LT Annunciator Light
ANO Analog Output
ANPT Aeronautical National Taper Pipe Threads
ANSA At Nearest Suitable Airport
ANSI American National Standards Institute
ANSU Aircraft Network Server Unit
ANT Antenna
ANU Aircraft Nose Up
AO Access Opening
AOA Angle Of Attack
AOAS Angle of Attack Sensor
AOC Airline Operational Control
AOC Air Operator's Certificate
AOCI Assembly Operation Configuration Item
AOD Audio on Demand
AODS Assembly Operation Design Solution
AOG Aircraft On Ground
AOHX Air/Oil Heat Exchanger
AOLS Airbus On-Line Services
AOM Aircraft Operating Manual
AOMT Airbus Onboard Maintenance Tool
AOND Assembly Operation Not Designed
AOOS Assembly Operation Out of Sequence
AOP Airbus Operational Plan
AOPM Airbus Operational Process Map
AORL Airbus Operation Readiness Level
AOS Aircraft Operational Seminars
AOS Airbus Operating System
AOT All Operators Telex
AOT Alert Operators Transmission
AP Autopilot
AP Airborne Printer
AP Airbus Procedure
AP Airworthiness Procedure
AP/FD Autopilot/Flight Director
APASHE Aircraft Publication Automated Shipping Expedite
APC Area Positive Control
APC Airbus Planning and Control
APEDD Aircraft Preliminary Equipment Definition Database
APF Aft Pylon Fairing
API Application Programming Interface
APLC Aircraft Power Line Conditioner
APM ARINC Processing Module
APM Aircraft Performance Monitoring Program
APM Airport Planning Manual
APP Appearance
APP Approach Control-Approach Control Office
APPL Application
APPR Approach
APPROX Approximately
APPU Asymmetry Position Pick Off Unit
APQ Airline Pre-Qualification
APQP Advanced Product Quality Planning
APS Avionics Printing Service
APS Absolute Pressure Sensor
APS Aircraft Prepared for Service
APS Auxiliary Power Supply
APS Auxiliary Power System
APS Airbus PDM Services
APT Acceptance Production Test
APT AIRBUS PILOT TRANSITION
APTCAS Auto Pilot Traffic Collision Avoidance System
APTL Airbus Process Technology Leader
APTL Airbus Process Technology Leader
APU Auxiliary Power Unit
APU Aft Pick Up
APU AFE APU Automatic Fire Extinguishing Control Unit
AQP Advanced Qualification Program
AR As Required
AR Audio Reproducer
ARA Aircraft Research Association
ARA Airworthiness Risk Assessment
ARBS Aerial Refuelling Boom System
ARC Air Refueling Computer
ARC Authorized Released Certificate
ARCC Airbus Research and Collaborative Contracts
ARFC Aircraft Rescue & Fire Fighting Chart
ARG Arresting Gear or Hook
ARINC Aeronautical Radio Incorporated
ARM Aircraft Recovery Manual
ARM Airworthiness Review Meeting
ARM Active Risk Manager
ARMD Armed
ARMG Arming
ARMT Armament
ARN Aircraft Registration Number
ARND Around
ARO After Receipt Order
ARP Aerospace Recommended Practice
ARP Aerodrome Reference Point - Airport Reference Point
ARP Airbus Resource Planning
ARP Airworthiness Review Panel
ARPT Airport
ARQ Airline Routine Queries
ARR Arrival
ARR Arriving
ARS Airworthiness Review Sheet
ARS FU Airworthiness Review Sheet Follow Up
ART Active Repair Time
ART Airbus Road Transport
ARTCC Air Route Traffic Control Centre
ARTCLD Articulated
ARTF Artificial
ARU Aircraft Router Unit
ARU Audio Reproducer Unit
A-RU Airbus Russia
ARV Alternate Refill Valve
AS Airscoop
AS Airspeed
ASA All Speed Aileron
ASA Audio and Sign Adapter
ASAC Airbus Statement of Airworthiness Compliance
ASAP As soon as possible
ASAP Advanced Statistics Analysis Project
ASCII American Standard Code for Information Interchange
ASCO Airbus Service Company Inc.
ASCOM Aircraft Standard Configuration Management
ASCU Air Systems Control Unit
ASD Accelerate Stop Distance
ASD Airborne Services Domain
ASD Aircraft Schematic Diagram
ASD AeroSpace and Defense Industries Association of Europe
ASDC Airline Service Data Collection
ASDM Airbus Structure Design Manual
ASE Airborne Support Equipment
ASE Airbus Supplied Equipment
ASF Amperes per Square Foot
ASF Avionics Server Function
ASFC Avionics Server Function Cabinet
ASG Airbus Security Group
ASI Airspeed Indicator
ASIC Application Specific Integrated Circuits
ASK Available Seat Kilometer
ASLC ACD Security Log Collector
ASM Aircraft Schematics Manual
ASM American Society for Metals
ASM Air Separation Module
ASMA Aircraft Systems Maintenance Aids
ASME American Society of Mechanical Engineers
ASN Aerospatiale Norme (Standard)
ASN Advance Shipping Notice
ASO Assembly Stage Operation
ASP Audio Selector Panel
ASP Airbus Supplier Part
ASPIRE Application and Software Products ICT REpository
ASPSU Autonomous Standby Power Supply Unit
ASR Airport Surveillance Radar
ASR Aircraft Structural Repair
ASR Air Safety Report
ASS Aircraft Security System
ASSC Aircraft Security Steering Committee
ASSCU Aircraft Security System Control Unit
ASSY Assembly
ASU Attendant Service Unit
ASV Alternate Servo Valve
ASYM Asymmetric(al)
AT Autothrust
AT Autothrottle
AT Additional Test
ATA Actual Time of Arrival
ATA Air Transport Association of America
ATA Assembly Test Article
ATAM Airbus Takeoff Analysis Module
ATB ATA 100 Breakdown
ATC Air Traffic Control
ATC Airbus Training Center
ATCA Air Traffic Control Board
ATCDB Aircraft Technical Characteristics Data Base
ATCH Attach(ment)
ATCI Air Traffic Control and Information
ATCK Attack
ATCRB Air Traffic Control Radar Beacon
ATCSS Air Traffic Control Data Link Signalling System
ATD Actual Time of Departure
ATD Aircraft Technical Definition
ATD Applicable Technical Documents
ATD Airworthiness Technical Directorate
ATDC Airbus Tianjin Delivery Center
ATE Automatic Test Equipment
ATEC Automatic Test Equipment Complex
ATEX Explosive Atmosphere
ATI Air Transport Indicator
ATI Airbus Transport International
ATIMS Air Traffic and Information Management System
ATIS Automatic Terminal Information Service
ATL Applicable Tool List
ATL Automatic Tape Laying
ATL Additional Test List
ATLAS Abbreviated Test Language for Avionics Systems
ATLAS Abbreviated Test Language for All Systems
ATM Air Traffic Management
ATM Aircraft Transportability Manual
ATM Available Ton-Mile
ATMG Airbus Technical Management Group
ATMS Advanced Text Management System
ATN Aeronautical Telecommunications Network
ATO Authorization to Offer
ATO Approved Training Organisation
ATP Available To Promise
ATP Authorization To Proceed
ATPL Airline Transport Pilot License
ATQC Airbus Temporary Quick Change
ATR Austin Trumbull Radio
ATRCCS Automatic Turbine Rotor Clearance Control System
ATS Air Traffic Service
ATS Autothrottle System
ATS Airbus Technical Specification
ATS Autothrust System
ATSAW Airborne Traffic Situational Awareness
ATSCD Air Traffic System Communications Domain (ATSCD)
ATSU Air Traffic Service Unit
ATT Attitude
ATT Attitude Reference
ATTEN Attenuation
ATTND Attendant
ATU AutoTransformer Unit
ATUC ATU Contactor
ATULC ATU Line Contactor
ATUPU ATU Protection Unit
ATZ Aerodrome Traffic Zone
AUD Audio
AUDSWTGSYS Audio Switching System
AUDSWTGUNIT Audio Switching Unit
A-UK Airbus UK
AUTH Authorize
AUTO Automatic
AUTOCAL Autocalibration
AUTOLAND Automatic Landing
AUW All-Up Weight
AUX Auxiliary
AVAIL Availability
AVAIL Available
A-VaRTM Advanced Vacuum-assisted Resin Transfer Moulding
AVG Asset Value Guarantee
AVG Average
AVIONICS Aviation Electronics
AVIS Aircraft Virtual Insider System
AVM Avionics Video Module
AVNCS Avionics
AVOD Audio/Video on Demand
AVRS Audio/Video Recording System
AVS Avionics Ventilation System
AVV Air Vent Valve
AWACS Advanced Warning (on) Aircraft Commercial Sales
AWB Air Waybill
AWD Aircraft Wiring Diagram
AWG American Wire Gage
AWG Audible Warning Generator
AWL Aircraft Wiring List
AWL Attendant Work Light
AWLS All Weather Landing System
AWM Aircraft Wiring Manual
AWS American Welding Society
AWS Airworthiness Security
AWS Airbus Wiki Service
AWSC Additional Work to Show Compliance
AWY Airway
AX Longitudinal Acceleration
AX Access Authorized
AY Lateral Acceleration
AZ Azimuth
AZ Vertical Acceleration
AZFW Actual Zero Fuel Weight

B

B Blue
B/B Back-Beam
B/C Business Class
B/D Bottom of Descent
BAABI Basic Approved ATA Breakdown Index
BAF BITE Access Function
BAF Baffle
BAFO Best and Final Offer
BAG Bandwidth Allocation Gap
BAL Basic Assembly Language
BARC Barometric Altitude Rate Computer
BARO Barometric
BAS Bleed Air System
BAT Battery
BAT Best Available Techniques
BATLC Battery Line Contactor
BBAND Broadband
BBRG Ball Bearing
BC Baggage Container Train
BCD Binary Coded Decimal
BCD Bulk Cargo Door
BCDS BITE Centralized Data System
BCF Brake Cooling Fan
BCL Battery Charge Limiter
BCM Backup Control Module
BCN Beacon
BCP Business Continuity Plan
BCRC Bulk Crew Rest Compartment
BCRU Battery Charge and Rectifier Unit
BCS Brake Control System
BCS Braking Control System
BCU Brake Control Unit
BCV Bleed Control Valve
BCWP Budgeted Cost of Work Performed
BCWS Budgeted Cost of Work Scheduled
BD Block Diagram
BDD BITE Description Document
BDIE Base de Donn�es Installation Electrique
BDLI Bundesverband der Deutschen Luft-und Raumfahrt Industrie
BDPC Bracketing Design Principles Catalog
BDSG BundesDatenSchutzGesetz (Federal Data Protection Act in
Germany)
BEA Bureau d'Enqu�te Accident
BEAD-Air Bureau Enqu�tes Accident D�fense Air
BEL CRK Bellcrank
BER Beyond Economical Repair
BETW Between
BEV Bevel
BEW Basic Empty Weight
BF Belly Fairing
BFD Bi-Folding Door
BFDAS Basic Flight Data Acquisition System
BFE Buyer Furnished Equipment
BFE Buyer Furnished Equipment
BFEMS BFE Management System
BFO Beat Frequency Oscillator
BFR Buffer
BG Build Group (Assembly Group)
BGAN Broadband Global Area Network
BGC Build Group Component
BGM Boarding Music
BGS Build Group Stack-Up
BH Block Hours
BHD Bulkhead
BIF BITE Interactive Folder
BIOS Basic Input Output System
BIP Best Industry Practice
BIP Business Improvement Project
BIST Built-in Self Test
BITE Built-In Test Equipment
BIU BITE Interface Unit
BK Black
BKFLW Backflow
BKUP Backup
BL Bleed
BLADE Breakthrough Laminar Aircraft Europe
BLC Basic Lines Catalog
BLES Brake Life Extension System
BLG Body Landing Gear
BLK Black
BLK Block
BLKT Blanket
BLOW Blower
BLST Ballast
BLSWT Bremen Low Speed Wind Tunnel
BLT Bolt
BLV Bleed Valve
BLW Below
BLWG Blowing
BLWR Blower
BM Beam
BM Beanstandungsmeldung
BM Bronze Mesh
BMC Bleed Monitoring Computer
BMI BITE Monitoring Interface
BMPS Bleed Monitoring Pressure Sensor
BMS Bulletin M�t�o Sp�cial
BMS Business Management System
BMSELV Body Mounted Selector Valve
BMU Battery Management Unit
BND Bonded
BNDG Bonding
BNDRY Boundary
BNR Binary
BNR Binary Words
BO Blocking Oscillator
BO Body Odour
BOH Brake-Off Weight
BOH Bauunterlagen-Organisations-Handbuch
BOL Bill Of Lading
BOM Bill of Material
BOMU Bleed and Overheat Monitoring Unit
BOOM Business Oriented Object Model
BoS Bill of Substance
BOS Business Operational Support
BOT Begin of Tape
BOT Bottom
BOT Business Owned Tool
BP Bottom Plug
BPCS Build Process Change Sheet
BPL Business Project Leader
BPR By-Pass Ratio
BPR Business Process Re-design or Re-engineering
BPS Backup Power Supply
BPS Bleed Pressure Sensor
BPTU Brake Pedal Transmitter Unit
BQM Business Quality Manager
BR Brown
BRAG Blue, Red, Amber, Green
BRC Brace
BRD Braid
BRD Business Requirements Dossier
BRDG Bridge
BRG Bearing
BRIDGE BITE Referential and Information for Dataloading Generic
Extracts
BRK Brake
BRKNG Braking
BRKR Breaker
BRKS Brakes
BRKT Bracket
BRP Build Reference Point
BRT Bright
BRT Brightness
BSC Balanced ScoreCard
BSCS Braking and Steering Control System
BSCU Braking and Steering Control Unit
BSHG Bushing
BSS Bare System Standard
BST Bracket Selection Tool
BSU Beam Steering Unit
BSV Body Shuttle Valve
BT Bus Tie
BT Basic Trust
BTA Bogie Trim Actuator
BTAC Bus Tie AC Contactor
BTC Bus Tie Contactor
BTCM Brake Temperature Compensation Module
BTDC Bus Tie DC Contactor
BTL Bottle
BTMS Brake Temperature Monitoring System
BTMU Brake Temperature Monitoring Unit
BTN Button
BtoP Built to Print
BTR Bus Tie Relay
BTS Base Transceiver Station
BTS Brake Temperature Sensor
BTS Bleed Temperature Sensor
BTSTRP Buttstrap
BTU British Thermal Unit
BTV Brake to Vacate
BU Battery Unit
BUS Busbar
BUSS Back-Up Speed Scale
BVID Barely Visible Impact Damage
BWS Body Wheel Steering
BWV Bypass Water Valve
BYDU Back-Up Yaw Damper Unit
BYP Bypass

C

c Equal Margin
C Celsius
C Centigrade
C Close
C Cyan
C Clear
C Cold (Electric Point)
C Comparator
C Convertible
C/A Cabin Attendant
C/B Circuit Breaker
C/L Checklist
C/M Command/Monitor
C/M Crew Member
C/O Change Over
C/S Call Sign
C/SSR Cost/Schedule Status Report
CA Cable Assembly
CA Cable
CA Constituent Assembly
CA Certification Authority
CA Collaboration Agreement
CA/CRL Certification Authority/Certificate Revocation List
CAA Central Aviation Archive
CAA Civil Aviation Authority
CAA Chromic Acid Anodizing
CAAC Civil Aviation Administration of China
CAATS Computer Assisted Aircraft Trouble Shooting
CAB Cabin
CAB PRESS Cabin Pressurization
CAD Computer Aided Design
CADB Components for Attestation Data Base
CADETS Computer Assisted Documentation Education Tutorial System
cADL contractual Applicable Documents List
CaDoc Cabin Documentation Display
CAE Chief Airworthiness Engineer
CAET Chief Airworthiness Engineer Team
CAG Circulation A�rienne G�n�rale
CAGE Commercial And Government Entity
CAI Combustion Area Inspection
CAIR Constituent Assembly Inspection Report
CAIV Conditioned Air Inlet Valve
CAL Calibration
CAL Calibrated
CALC Cargo Acceptance and Load Control
CAM Cabin Assignment Module
CAM Computer Aided Manufacturing
CAM Customer Acceptance Manual
CAM Crew Administration Manual
CAM Continued Airworthiness Manager
CAM Collaborative Architecture Mock-up
CAMO Continuing Airworthiness Management Organisation
CAN Controller Area Network
CAN Canopy
CANC Cancellation
CANC Cancel
CANCD Cancelled
CANTIL Cantilever
CAO Cargo Aircraft Only
CAOA Corrected Angle Of Attack
CAOM Cabin Attendant Operating Manual
CAP Capacitor
CAP Component Availability Programme
CAPLTY Capability
CAPS Cabin Altitude Pressure Sensor
CAPT Captain
CAR Cargo
CAR Civil Aviation Requirements
CAR Complementary Airworthiness Requirements
CARE Common Airbus Requirements Engineering
CARE Continuing Airframe - Health Review and Evaluation
CARP Carpet
CAS Calibrated Air Speed
CAS Calculated Air Speed
CAS Collision Avoidance System
CAS Computed Air Speed
CAS Cabin Attendant Seat
CA-SER Constituent Assembly Serial Number
CAST Commercial Aviation Safety Team
CAT Category
CAT Clear Air Turbulence
CAT Catastrophic
CatAP Categorised Airbus Project
CATCH Complex Anomaly Tracking and Search
cATD contractual Applicable Technical Document
CATIA Computer Aided Three-dimensional Interactive Application
CATS Cross Application Time Sheet
CAUT Caution
CAX Compartment Air Extraction
CBAL Counterbalance
CBB Connexion By Boeing
CBIT Continuous BITE
CBM Circuit Breaker Monitoring
CBMF Circuit Breaker Monitoring Function
CBMS Circuit Breaker Monitoring System
CBMU Circuit Breaker Monitoring Unit
CBO Cycles between Overhaul
CBORE Counterbore
CBP Circuit Breaker Panel
CBR California Bearing Ratio
CBS Cost Breakdown Structure
CBSV Cycles Between Scheduled Visits
CC Current Comparator
CC Configuration Component
CC Cabin Crew
CCAR China Civil Aviation Regulations
CCB Configuration Control Board
CCB Change Control Board
CCB Compartment Control Box
CCB Cabin Crew Bulletin
CCB Cargo Control Box
CCC Crash Crew Chart
CCC Component Change Card
CCC Configuration Control Committee
CCC Cabin and Cargo Customization
CCC Crises Control Center
CCCP Compressor Cavity Control Pressure
CCD Cursor Control Device
CCD Configuration Control Document
CCD Cabin Crew Data
CCG Cabin Configuration Guide
CCITT Consultative Committee International Telegraphy & Teleph
CCM Configuration Control Management
CCM Cabin Customization Manager
CCMail Cabin Crew Mailing
CCMD Configuration Conformity Management and Documentation
CCMR Candidate Certification Maintenance Requirements
CCOC Combustion Casing Outer Case
CCOM Cabin Crew Operating Manual
CCP Capacity Contingency Planning
CCQ Cross Crew Qualification
CCQ Client Configuration Qualification
CCR Credit Card Reader
CCR Customer Change Register
CCR Cluster Component Responsible
CCR Customer Confidence Review
CCRC Cabin Crew Rest Compartment
CCRM Cabin Crew Rest Module
CCS Cabin Communication System
CCT Conditions Cross-reference Table
CCU CSAS Control Unit
CCW Counter Clockwise
CD Compact Disk
CD Control Display
CD Cold Drawn
CD Count Drag
CD Cargo Door
CD Case Drain
CDA Cargo Door Actuator
CDA Continuous Descent Approach
CDAM Centralized Data Acquisition Module
CDAS Cargo Door Actuation System
CDAU Centralized Data Acquisition Unit
CDB Configuration DataBase
CDBT Component Design and Build Team
CDC Cargo Door Controller
CDC Customer Definition Centre
CDC Crash Detection Circuit
CDCCL Critical Design Configuration Control Limitations
CDCM Cabin Definition Closure Meeting
CDCV Cargo Door Control Valve
CDD Common Data Document
CDDS Component Documentation Data System
CDE Consumption Data Exchange Card
CDF Contractual Definition Freeze
CDF Configuration Data File
CDF1 Customer Definition Freeze
CDF2/3 Customer Definition Freeze
CDF4 Customer Definition Freeze
CDI Compliance Demonstration Item
CDIM Component Data Instruction Manual
CDIS Customization and Delivery Information Services
CDL Configuration Deviation List
CDLC Centralized Data Loading Connector
CDLCU Cockpit Door Locking Control Unit
CDLS Cockpit Door Locking System
CDM Cockpit Door Module
CDM Coolant Distribution Module
cDMU configured Digital Mock-Up
CDN Content Delivery Network
CDP Compressor Discharge Pressure
CDP Community Deployment Process
CDPL Community Deployment Process Leader
CDR Critical Design Review
CDR Conceptual Design Review
CD-ROM Compact Disc - Read Only Memory
CDS Component Documentation Status
CDS Control and Display System
CDS Cold Drawn Steel
CDS Component Delivery Specification
CDSS Cockpit Door Surveillance System
CDSU Cockpit Door Surveillance Unit
CDT Cabin Door Trainer
CDT Central Development Team
CDT Component Delivery Team
CDU Center Drive Unit
CDU Control and Display Unit
CD-WD Component Data Working Document
CE Central Entity
CE Change Event
CE Centralized Equipment
CE Chief Engineer
CECAM Centralized Cabin Monitoring
CED Cooling Effect Detector
CEET Cabin Emergency Evacuation Trainer
CEL Component Evolution List
CELLI Ceiling Emergency LED Light
CEO Chief Executive Officer
CEO Current Engine Option
CEPT Council of European Posts and Telegraphs
CER Contr�le Essais et R�ception
CER Composite Engineering Requirements
CES Calculated Embodiment Status
CEV Centre d'Essais en Vol
CEV Clutch Electro Valve
CEV Commercial Equipment Ventilation
CF Course to a Fixed Waypoint
CF Configuration File
CF Center Fuselage
CFAR Certification First Article Review
CFATB Centre de Formation A�ronautique de Toulouse Blagnac
CFC Carbon Fiber Composite
CFD Computational Fluid Dynamics
CFDIU Centralized Fault Display Interface Unit
CFDS Centralized Fault Display System
CFE Customer Furnished Equipment
CFF Cabin First Flight
CFFC Cockpit Fixed Frequency Converter
CFG Customer Focus Group
CFI Clearance for Installation
CFIT Controlled Flight Into Terrain
CFM Cable Fabrication Manual
CFM Cubic Feet per Minute
CFMI CFM International
CFP Computerized Flight Plan
CFR Code of Federal Regulations
CFR Current Flight Report
CFRP Carbon Fiber Reinforced Plastic
CFS Cabin File Server
CFS Cold Finished Steel
CFT Call For Tender
CFTP Certification Flight Test Plane
CFTP Certification Flight Test Program
CFTR Certification Flight Test Record
CFTR Certification Flight Test Report
CFVCU Cargo Fire Verification Control Unit
CFVS Cargo Fire Verification System
CG Center of Gravity
CGC Customer Ground Check
CGCS Center of Gravity Control System
CGIB Control and Guidance Integration Bench
CGM Computer Graphics Metafile
CGR CATIA Graphical Representation
CH Character
CH Center Hatrack
CH Charge
CH Cargo Hold
CHAM Chamfer
CHAN Channel
CHAS Chassis
CHG Change
CHIFS Configuration Handling and Industrialization of Field loadable
Software
CHK Check
CHM Chime
CHMBR Chamber
CHRG Charge
CHRO Chronometer
CI Cost Index
CI Cast iron
CI Configuration Item
CI Conversion Instruction
CI Course to an Intercept
CI Cost Improvement
CIAM Cabin Interior Arrangement Manager
CICS Customer Information Control System
CICS/VS Customer Information Control System/Virtual Storage
CID Configuration Index Document
CIDS Cabin Intercommunication Data System
CIL Content Inventory List
CIM Continuous Image Microfilm
CIM Customer Inspection Manager
CIN Change Identification Number
CINS Cabin Information Network System
CIP Continuous Improvement Plan
CIP Cover Issue Paper
CIPOS CIDS Internal Power Supply
CIR Common Information Repository
CIRCE Conception Informatis�e et Rationalis�e des C�blages
Electriques
CISS Conformity Inspection at Supplier�s Site
CIT Compressor Inlet Temperature
CIU Camera Interface Unit
CJC Cold Junction Compensation
CK Check
CKD Checked
CKPT Cockpit
CKT Circuit
CL Center Line
CL Checklist
CL Climb
CL Clip
CL Clutch
CL Circuit Letter
CL Convergence Levels
CL/OP Closure/Opening
CLAF Common Look And Feel
CLAS Central Library Archiving System
CLB Climb
CLCTR Collector
CLD Closed
CLDB Component Location Data Bank
CLEDU Cabin LED Unit
CLG Centerline Landing Gear
CLG Ceiling
CLK Clock
CLM Component Location Manual
CLN Clinometer
CLNG Ceiling
CLOG Clogging
CLOGD Clogged
CLP Clamp
CLPR Clapper
CLR Clear
CLR ALT Clearance Altitude
CLRD Cleared
CLRNC Clearance
CLS Cargo Loading System
CLS Cargo Loading System Manual
CLSD Closed
CLSG Closing
CLSM Crisis Logistic Support Manager
CLTM Component Location Training Manual
CLV Clevis
CM Conversion Manual
CM Conversion Module
CM Call Maintenance
CM Centimeters
CM Collective Modification
CM Configuration Management
CM Certification Manager
CMA Common Mode Analysis
CMC Central Maintenance Computer
CMD Command
CME Configuration Management Enabler
CMEU Cabin Passenger Management Memory Expansion Unit
CMF Central Maintenance Function
CMFLR Cam Follower
CMI Computer Managed Instruction
CMIT Component Management and Integration Team
CML Consumable Material List
CMM Calibration Memory Module
CMM Component Maintenance Manual
CMM Capability Maturity Model
CMM Coordinate Measuring Machine
CMMI Capability Maturity Model Integration
CMM IPL Component Maintenance Manual Illustrated Parts List
CMMM Component Maintenance Manual Manufacturer
CMMV Component Maintenance Manual Vendor
CMOS Complementary Metal Oxide Silicon
C-MOS Complementary Metal Oxyde Semiconductor
CMP Customer Maintenance Program
CMP Configuration Maintenance and Procedure document
CM P&A Certification Manager Parts and Appliances
CMPLRY Complementary
CMPLTD Completed
CMPNT Component
CMPS CPLR Compass Coupler
CMPTG Computing
CMPTR Computer
CMR Certification Maintenance Requirements
CMR Composite Manufacturing Requirement
CMRLR Cam Roller
CMS Centralized Maintenance System
CMS Code Mati�re Soci�t�
CMS Component Maintenance Sheet
CMS Cabin Management System
CMS Content Management System
CMS Configuration Management System
CMT Cabin Management Terminal
CMT Customization Management Tool
CMU Communications Management Unit
CMV Concentrator and Multiplexer for Video
CN Change Note
CNA Common Nozzle Assembly
CNC Computer Numerical Control
CNCT Connect
CNCTD Connected
CNCTN Connection
CNCTR Connector
CNCTRC Concentric
CNCV Concave
CND Conduit
CNSU Cabin Network Server Unit
CNTNR Container
CNTOR Contactor
CNTR Counter
CNTRTR Concentrator
CNU Cabin Network Unit
CO Company
CO Cut-Off
CO Carbon Monoxide
CO Customization Object
CO2 Carbon Dioxide
COA Certificate Of Airworthiness
COAS Cabin Operations Applications System
COAX Coaxial
CoC Centre of Competence
COC Cabin Operation Center
COC Customer Originated Change
COCOTO Cockpit Collection Tool
CoC P&PM CoC Project & Programme Management
COCT Cabin Operations Consultation Tool
COD/BOD Chemical Oxygen Demand/Biological Oxygen Demand
CODD Contractual On Dock Date
CoE Center of Excellence
C of A Certificate of Airworthiness
CoG Centre of Gravity
COHO Coherent Oscillator
COL Column
COLLI COntour LED LIght
COM Communication
COM Command
COM Common
COM Company Organization Manual
CoMa Configuration Manager
CombL Combustible Liquid
COMC CSAS Overheat Monitoring Controller
COMDL Coding Module
COML Commercial
COMO Coordination Memo
COMP Compass
COMP Compensator
COMPSN Compensation
COMPT Compartment
COMPTR Comparator
COMTN Commutation
CoNC Core or Non Core
COND Condition
COND Conditioned
COND Conditioning
CONDTN Condition
CONDTR Conditioner
CONFIG Configuration
CONFIRMD Confirmed
CONSUMPT Consumption
CONT Continue
CONT Continuous
CONT Controller
CONT Contour
CONV Converter
COO Chief Operating Officer
COOL Cooler
COOL Cooling
COOLG Cooling
COOLR Cooler
COORD Coordination
COORD Coordinate
COPA COoperation PArtners
COPI Copilot
Cor.M Corrosive Material
CORA Customer Order Administration
CORCTD Corrected
CORR Correct
CORR Corrugate
CORR Corrugation
CO RTE Company Route
COS Cowl Opening System
COS Cosine
COS Condition Of Supply
COSHH Control of Substances Hazardous to Health
COSO Committee of Sponsoring Organizations of the Treadway
Commission
COT Cotter
COTS Commercial Off-The-Shelf
COUNT Counter
COV Cover
COWL Cowling
CP Clock Pulse
CP Contributor Package
CP Control Panel
CP Commercial Pilot
Cp, Cpk Capability indexes
CPC Cabin Pressure Controller
CPC Corrosion Preventive Compound
CPCP Corrosion Prevention and Control program
CPCS Cabin Pressure Control System
CPCU Cabin Pressure Control Unit
CPD Continuing Product Development
CPD Composites Part Design
CPD Customer Programme Director
CPDLC Controller-Pilot DataLink Communication
CPF Central Programme Function
CPF Change Proposal Form
CPI Cost Performance Index
CPIF Control Power Intermediate Frequency
CPIOM Core Processing Input/Output Module
CPL Couple
CPLD Coupled
CPLG Coupling
CPLIR Commercial Pilot License Instrument Rating
CPLR Coupler
CPM Critical Path Method
CPMS Cabin and Passenger Management System
CPMU Cabin Passenger Management Unit
CPN Corporate Project Number
CPNY Company
CPO Central Programme Organisation
CPPR Capture of Product and Process Request
CPR Changed Product Rule
CPRSR Compressor
CPT Capture
CPT Compartment
CPT Cure Ply Thickness
CPU Central Processing Unit
CQ Customer Query
CQC Certification and Qualification Committee
CR Cold Rolled
CR Cruise
CR Change Request
CRA Cooperation & Research Agreement
CRB Compliance Record Book
CRC Centralized Radio Control
CRC Continuous Repetitive Chime
CRC Cyclic Redundancy Check
CRC Camera Ready Copy
CRC Crew Rest Compartment
CRC Cyclic Redundancy Code
CRC Compliance Review for Certification
CRD Comment Response Document
CRDC Common Remote Data Concentrator
CRE Corrosion-Resistant
CRES Corrosion-Resistant Steel
CRG Cargo
CRI Certification Review Item
CRK Crank
CRL Collar
CRM Communication Router Module
CRM Customer Relationship Manager
CRM Customer Relationship Management
CRM Certification Review Meeting
CROSS Center for Reliable Operational System Security
CROSSFEEDR Crossfeeder
CRP Capacity Requirement Planning
CRQ Customer Request
CRR Component Reliability Report
CRS Course
CRS Cold Rolled Steel
CRS Cost Repercussion Sheet
CRS Certificate of Release to Service
CRS Content Repository Server
CRS Compliance Record Sheet
CRSN Corrosion
CRT Cathode Ray Tube
CRU Cabin Router Unit
CRU Card Reader Unit
CRU Central Refrigeration Unit
CR VI Hexavalent Chromium
CRZ Cruise
CS Center Spar
CS Cabin Cleaners Steps
CS Call Switch
CS Certification Specification
CS Certifying Staff
CSAS Cooled Service Air System
CSAS Conditioned Service Air System
CSBS Controllable Sunlight Blocking System
CSBSU Controllable Sunlight Blocking System Unit
CSC Configured Spare Component
CSC Cabin Safety Crew
CSCG Cabin Systems Configuration Guide
CSD Constant Speed Drive
CSDB Common Source DataBase
CSDD Common Support Data Dictonary
CSDM Concession Support Decision Manual
CSDM Cargo Smoke Detection Module
CSE Course Set Error
CSF/L Continuous Safe Flight/Landing
CSI Cycles Since Installation
CSIP Customer Satisfaction Improvement Programme
CSK Countersink
CSKH Countersunk Head
CSL Console
CSM Computer Software Manual
CSM Commodity Sourcing Manager
CSM/G Constant Speed Motor/Generator
CSN Catalog Sequence Number
CSN Cospas Serial Number
CSPM Customer Support Procedure Manual
CSR Certificate Signing Request
CSS Cockpit System Simulator
CSS Certification Status Summary
CST Cabin Service Trainer
CSTG Casting
CSTR Constraint
CSU Command Sensor Unit
CSV Cycles Since Last Shop Visit
CT Current Transformer
CT Center Tape
CT Control Tower
CTA Control Area
CTA Controlled Time of Arrival
CTB Center Technology Board
CTDP Cabin Trainer Data Packages
CTF Central Test Facilities
CTF.P Central Test Facility Response
CTF.Q Central Test Facility Questions
CTI Critical Item
CTK Center Tank
CTL Central
CTL Control
CTL Customer Team Leader
CTLR Controller
CTM Collaborative Team Meeting
CTO Chief Technology Officer
CTP Chief Test Pilot
CTR Center
CTR Contour
CTR Control Zone
CTR Concurrent Tooling Review
CTRD Centered
CTS Customized Technical Specification
CTS Cabin Temperature Sensor
CTSK Countersunk
CTU Cabin Telecommunications Unit
CTWT Counterweight
CU Control Unit
CUB Calculateur Universel de Bord
CUC Cost Unit Controlling
CUDU Current Unbalance Detection Unit
CUP Customer Package
CUR Current
CustoCoRe Customization Cost Reduction
CV Curriculum Vitae
CV Cost Variance
CVDR Cockpit Voice and Data Recorder
CVE Compliance Verification Engineer
CVL Control Value List
CVL Configuration Variation List
CVM Cabin Video Monitoring
CVMS Cabin Video Monitoring System
CVR Cockpit Voice Recorder
CVRS Cockpit Voice Recorder System
CVT Center Vent Tube
CVU Crypto Voice Unit
CW Clockwise
CW Continuous Wave
CWB Center Wing Box
CWG Cockpit Working Group
CWLU Cabin Wireless LAN Unit
CWR Center Wire Resistance
CWS Cabin Work Station
CWS Control Wheel Steering
CWSIU Combined Wheel Speed Interface Unit
CWY Clearway
CY Cycle
CY Calendar Year - Current Year
CYL Cylinder

D

D/A Digital to Analog
D/D Engine Out Drift Down Point
D/LNA Diplexer/Low Noise Amplifier
D/O Description and Operation
D&B Design & Build
D&M Design & Manufacture
DA Drift Angle
DABS Discrete Address Beacon System
DAC Digital to Analog Converter
DAC Drawing Aperture Card
DAC Double Annular Combustor
DACAS Data Centric Authoring System
DACOTO Data Collection Tool
DADC Digital Air Data Computer
DADS Digital Air Data System
DAE Designated Airworthiness Engineer
DAF Damping Augmentation Function
DaFA Data For Application
DAGM Dry Air Generation Module
DAGS Dry Air Generation System
DAL Development Assurance Level
DAMATO Data Management Tool
DAMP Damping
DAMPG Damping
DAN Design Assurance Nominee
DAORD Detailed Airline Operations Requirement Document
DAR Digital ACMS Recorder
DAR Digital AIDS Recorder
DARE Development And Ramp-up Excellence
DAS Development Accomplishement Summary
DAS Design Assurance System
DAS/STC Designated Alteration Station/Supplemental Type Certific
D-ATIS Digital Automatic Terminal Information System
DAU Data Acquisition Unit
DB Database
DB Data Base
DBAI Design and Build Aircraft Improvement
DBBS Data Base Bulletin Service
DBC Data Bus Communication
DBCR DataBase Change Request
DBD Data Basis for Design
DBD Data Basis for Design
DBLR Doubler
D-BoM Design-Bill of Materials
DBPS Display Based Passenger Sign
DBTS Data Broadband Transceiver System
DC Direct Current
DC Direct Cost
DC Domain Coordinator
DCC Dispo Cockpit
DCC Direct Computer Control
DCCT Development Compliance and Certification Test
DCD Data Control and Display
DCD Decode
DCD Double Channel Duplex
DCDR Decoder
DCDU Datalink Control and Display Unit
DCI Design Change Instruction
DCL Digital Cabin Logbook
DCL-CCT Digital Cabin Logbook - Cabin Configuration Tool
dCoRS detailed Commercial Repercussion Sheet
DCP Display Control Panel
DCR Dock on Crew Rest
DCR Delivery Control Room
DCR Design Change Request
DCRC Dock on Crew Rest Compartment
DCS Designated Certification Specialist
DCS Direct Current Supply
DCS Double Channel Simplex
DCU Direction Control Unit
DCV Directional Control Valve
DCVR Direct Current Voltage Ratio
DD Definition Dossier
DD Dependence Diagram
DD Direct Delivery
DDA Digital Differential Accumulation
DDC Definition Dossier Check
DDCU Dedicated Display and Control Unit
DDD Detailed Design Dossier
DDD Detailed Definition Dossier
DDI Design Drawing Instruction
DDI Documentary Data Insert
DDM Digital Data Module
DDM Difference in Depth of Modulation
DDMT Domain Deliverable Management Tool
DDP Declaration of Design and Performance
DDRMI Digital Distance and Radio Magnetic Indicator
DDS Domain Display Switch
DDS Design Data Set
DDTN Definition Dossier Technical Note
DDTS Digital Data Technology Standards
DDU Delivered Duty Unpaid
DDV Direct Drive Valve
DE.PA Define & Integrate the Physical Aircraft
DE.SO DEvelop System Overall
DEC Declination
DECEL Decelerate
DECOMPRESS Decompression
DECR Decrease
DEDP Data Entry and Display Panel
Def Define
DEF Definition
DEFDARS Digital Expandable Flt Data Acquisition & Recording Sys
DEFL Deflect
DEFOG Defogging
DEFRD Deferred
DEFUEL Defueling
DEG Degree
DEG Direct Entry Graduate
DEGRADD Degraded
DEL Delete
DEL Delay Message
DEL BY Deleted by
DELTA P Differential Pressure
DEM Digital Electronic Module
DEMOD Demodulator
DEP Departure
DEP Data Entry Panel
DEP Data Entry Plug
DEPLD Deployed
DEPRESS Depressurization
DEPT Department
DES Descend
DES Descent
DES Digital Equipment Simulator
DEST Destination
DET Detection
DET Detector
DETECTD Detected
DETNG Determining
DEU Decoder/Encoder Unit
DEV Deviation
DEVN Deviation
DEW Delivery Empty Weight
DEX Access Demanded
DF Direction Finder
DFA Delayed Flaps Approach
DFCV Dual-Flapper Check Valve
DFDAMU Digital Flight Data Acquisition and Management Unit
DFDAU Digital Flight Data Acquisition Unit
DFDR Digital Flight Data Recorder
DFDRS Digital Flight Data Recording System
DFEM Detailed Finite Element Model
DFIDU Dual Function Interactive Display Unit
DFM Data For Manufacturing
DFMEA Design Failure Mode & Effect Analysis
DFPPU Differential Feedback Position Pick-Off Unit
DFPRM Duct and Fuel Pipe Repair Manual
DFPRM IPL Duct and Fuel Pipe Repair Manual Illustrated Parts List
DFS Detailed Functional Specification
DFS Differential Flap Setting
DFSOV Dual Flow and Shut-Off Valve
DFT Drift
DFTA Development Flight Test Activity
DFZ Designated Fire Zone
DG Directional Gyro
DG Dark Green
DG Decision Gate
DGA Donn�es G�n�rales Avions
DGAC Direction Generale de l'Aviation Civile
DGI Digital Input
DGO Digital Output
DGPS Digital Global Positioning System
DGTL Digital
DH Decision Height
DI Data Input
DI Deicing
DI Design Instruction
DIA Diameter
DIAPH Diaphragm
DIBU Door Illumination Ballast Unit
DIC Digitial Image Correlation
DIFF Differential
DIM Direction Input Module
DIM Dimension
DIM Dimming
DIMM Dimmable
DIP Dual In-line Package
DIP Door Indication Panel
DIP Dissemination Information Package
DIPLXR Diplexer
DIR Direct
DIR Direction
DIR Director
DIR TO Direct to
DISC Disconnect
DISC Disconnected
DISC Disconnection
DISCH Discharge
DISCH Discharged
DISCNTY Discontinuity
DISCTN Disconnection
DIS-IN Discrete Input
DISRMD Disarmed
DIST Distance
DISTR Distribute
DISTR Distribution
DISTR Distributor
DITCH Ditching
DITS Digital Information Transfer System
DIU Digital Interface Unit
DIVERTG Diverting
DL Domain Leader
DL Data Loader
DLC Direct Lift Control
DLCM Data Loading Configuration Manager
DLCS Data Loading and Configuration System
DLK Data Link
DLOAD Data Loading
DLR Deutsches Zentrum f�r Luft und Raumfahrt
DLRB Data Loading Routing Box
DLS Data Loading Selector
DLS Data Load System
DLSU Data Loading Selector Unit
DLW Data Loading Workshop
DLY Delay
DM Data Module
DM Dispatch Message
DMA Direct Memory Access
DMC Display Management Computer
DMC Design Modification Committee
DMC Direct Maintenance Cost
DMC Data Module Code
DMD Demand
DMD Demand Data Sheet
DMDLTR Demodulator
DME Distance Measuring Equipment
DMF Date of Manufacture
DMFF Door Monitoring and Flight Lock Function
DMI Design Maturity Item
DMM Data Memory Module
DMP Display Management Processor
DMPR Damper
DMR Design Material References
DMS Document Management System
DMU Data Management Unit
DMU Digital Mock-Up
DMZ DeMilitarized Zone
DN Down
DN Delivery Note
DnA Develop new Aircraft
DnCC Develop new Cabin and Cargo
DNI Drawing Numerical Index
DNLK Downlock
DNLKD Downlocked
DNLNK Downlink
DNW German-Dutch Wind Tunnel
DO Data Output
DO Design Office
DO Design Organization
DOA Design Organisation Approval
DOA Design Organisation Approval
DOC Direct Operating Cost
DOC.DATA Documentary Data
DOC9 DOCUMENT 9
DOHS Door Operation Handle Switch
DOID Design Organisation Interface Document
DOLLI Dome LED Light
DOM Design Organisation Manual
DOM Document Object Model
DOORLI Door Light
DOORS Dynamic Object Orientated Requirements System
DOP Delegation Of Power
DOR Design Office Responsible
DORIS DOcument Revision Information System
DOS Design Organisation Signatories
DOS Design Organisation Signatures
DOS Door Opening System
DOW Dry Operating Weight
DP Data Processing
DP Differential Protection
DPCU Digital Passenger Control Unit
DPDS Design Product Definition System
DPDT Double Pole/Double Throw
DPI Differential Pressure Indicator
DPM Design Progress Meeting
DPPS Delivery of Product at Purchaser�s Site
DPRM Delivery Planning Review Meeting
dPRS detailed Production Repercussion Sheet
DPS Differential Pressure Sensor
DQC Design Quality Check
DQN Design Query Note
DR Dead Reckoning
DR Door
DR Dispatch Reliability
DR Drill / Drilling / Drills
DRCR Design Rework Change Request
DRIP Design Response Intended for Playback
DRL Documentation Requirement List
DRM Duct Repair Manual
DRMI Distance Radio Magnetic Indicator
DRN Drawn by
DRN Drawn
DRT Data Replication Tool
DRUD Data Recording, Up & Downloading
DRVG Driving
DRVN Driven
DRVR Driver
drwg. Drawing
DS Downstream
DS Design Solution
DS Design Solution
DS/C Digital Server/Controller
DSA Data Sheet A
DSAPP Disappearance
DSB Door Sensor Block
DSB Data Sheet B
DSC Digital Signature Checker
DSC Dry Sealant Concept
DSCM DOA Supplier Control Manager
DSCRM Discriminator
DSCRT Discrete
DSCS Door and Escape Slide Control System
DSCS Door and Slide Control System
DSDL Dedicated Serial Data Link
DSEAR Dangerous Substances and Explosive Atmospheres
Regulations
DSEB Digital Seat Electronic Box
DSENGD Disengaged
DSF Dependent System Fault
DSG Design Service Goal
DSI Discrete Input
DSIP Door/Slide Indication Panel
DSM Decorative Sheet Material
DSMCU Doors and Slides Management Control Unit
DSMS Doors and Slides Management System
DSO Discrete Output
DSPL Display
DSPLYD Displayed
DSQR Designated Supplier Quality Representative
DSR Decision on Solution Ranking
DSS Door Surroundings
DSSS Direct Sequence Spread Spectrum
DSTN Drawing Set Technical Note
DSTRK Desired Track
DSUG Drawing Set User Guide
DT ALI Damage-Tolerant Airworthiness Limitation Items
DtC Design to Cost
DTD Document Type Definition
DTG Distance to Go
DTLL Document Type Level List
DTMF Dual Tone Multiple Frequency
DTMS Damage Tolerance Monitoring System
DTMU Damage Tolerance Monitoring Unit
DTN Design Technical Note
DTR Design Task Responsible
DTS Duct Temperature Sensor
DTS Detailed Technical Specification
DU Display Unit
DU Document Unit
D-ULPA Double Ultra Low Particulate Air
DUM Dummy
DV Design Variant
DVD Digital Versatile Disk
DVD Digital Video Disk
DVI Digital Visual Interface
DVR Digital Video Recorder
DWC Drip Water Collector
DWG Drawing
DWL Dowel / Doweling / To Dowel
DX Access Demanded
DYNMTC Dynamometric

E

E East
E Engineering
E/ECI Electrical/Electronic Common Installation
E/F Equipment/Furnishings
E/T Electrical Trim
EA Environmental Aspect
EA Engine Alliance
EA Equipment Assembly
EABDC Enhanced Aircraft Broadcast Data Collector
EAC Estimate At Completion
EADI Electronic Attitude Director Indicator
eADL enhanced Airborne Data Loader
EADS European Aeronautic Defence and Space Company
EAFR Enhanced Airborne Flight Recorder
EAM Electrical Architecture Meeting
EAPAS Enhanced Airworthiness Program for Aeroplane Systems
EAROM Electrically Alterable Read Only Memory
EAS Equivalent Airspeed
EASA European Aviation Safety Agency
EASP Extended Aircraft Systems Perimeter
EAT Expected Approach Time
EAT Estimate At Completion
EAT Engineering Application Toolkit
EATULC Emergency ATU Line Contactor
EBAS Engine Bleed Air System
EBATC Emergency Battery Contactor
EBCU Emergency Brake Control Unit
eBD enriched Block Diagram
EBD Engineering Baseline Description
EBHA Electrical Backup Hydraulic Actuator
EBIT Earnings Before Interest and Taxes
EBITDA Earnings Before Interest, Tax, Depreciation and Amortisation
EBITDAR Earnings Before Interest, Taxes, Depreciation, Amortization
and Rent
EBS Engine Build Specification
EBTAC Emergency Bus Tie AC Contactor
EBTC Emergency Bus Tie Contactor
EBTDC Emergency Bus Tie DC Contactor
EBU Engine Build-up Unit
EC Engine Control
EC Entertainment Controller
EC Executive Committee
EC Electrical Contact
eCAIR external Constituent Assembly Inspection Report
ECAM Electronic Centralized Aircraft Monitoring
ECAM TC ECAM Temporary Change
ECAS Emergency Cabin Alerting System
ECB Electronic Control Box
ECC European Conformity Certificate
ECD Engine certification Dossier
ECDB Equipment Central Data Bank
ECF Expanded Copper Foil
eCIL electronic Cabin Inventory List
ECLS Electrical Cargo Loading system
ECM Engine Condition Monitoring
ECM Engineering Coordination Memo
ECM Equipment Change Management
ECM EADS Competence Management
ECM EADS Competence Management
ECM Enterprise Content Management
ECMS Electrical Contactor Management System
ECMU Electrical Contactor Management Unit
ECN Engineering Change Note
E-COMETE Extended COrdination of Maintenance End-to-End
ECON Economy
ECON Economic
ECP Ecam Control Panel
ECS Environmental Control System
ECS Electronic Cooling System
ECS Export Control System
ECSB Embedded Computer System Bus
ECT ECAM Customization Tool
ECU Electronic Control Unit
ECUCV Electronic Control Unit Cooling Valve
ED Edge Distance
ED Engine Display
ED Environmental Deterioration
EDB ECAM Data Book
EDD Engineering Delivery Documents
EDD Electrical Data Dossier
EDD Equipment Definition Dossier
EDES Equipment Definition Evolution Sheet
EDI Electronic Data Interchange
EDIU Electrical Discrete Interface Unit
EDMC Engineering Drawing Microfilm Card
EDMS Engineering Documentation Management Services
EDMU Electrical Distribution Monitoring Unit
EDP Electronic Data Processing
EDP Engine Driven Pump
EDR Electrical Design Rules
EDR Experience Design Requirements
EDS Electronic Distribution of Software
EDS Engineering Document System
EDS Enterprise DMS (Document Management System) Solution
EDS Electronic Delivery Service
EDTA Ethylenediamine Tetraacetate
EDTO Extended Diversion Time Operations
EE Electrical and Electronic
EE Electrical Equipment
EEAM Early Electrical Architecture Meeting
EEC Electronic Engine Control
EEC Engine Electronic Controller
EEC Emergency Electrical Configuration
EECG Emergency Equipment Configuration Guide
EENMU Emergency Electrical Network Management Unit
EEOP Engineering Edge Of PART
EEPDC Emergency Electrical Power Distribution Center
EEPMS Emergency Escape Path Marking System
EEPROM Electrically Erasable Programmable Read Only Memory
EF Early Finish Date
EFB Electronic Flight Bag
EFBSA Electronic Flight Bag Software Application
EFCC Electronic Flight Control Computer
EFCC Emergency Flight Control Contactor
EFCS Electrical Flight Control System
EFCU Electrical Flight Control Unit
EFDARS Expandable Flight Data Acquisition and Recording Systems
EFF Effective
EFF Effectivity
EFF/FFU Electronic Flight Folder/Flight Follow-Up
EFI Experienced Field Investigator
EFIS Electronic Flight Instrument System
EFIS CP EFIS Control Panel
EFIS SGU EFIS Symbol Generator Unit
EFOB Estimated Fuel on Board
EFPMS Emergency Floor Path Marking System
EFTA European Free Trade Association
EGIU Electrical Generation Interface Unit
EGL Engineering Group Leader
EGLC Emergency Generator Line Contactor
EGMS Electrical Galley Management System
EGP EADS General Procurement
EGPWM Enhanced Ground Proximity Warning Module
EGPWS Enhanced Ground Proximity Warning System
EGT Exhaust Gas Temperature
EHA Electro-Hydrostatic Actuator
EHA Environmental Hazard Analysis
EHAC Electro-Hydrostatic Actuator Contactor
EHC Electrical Heater Controller
EHCU Electromechanical Handforce Control Unit
EHM Engine Health Monitoring
EHS Electrical Heater System
EHS Environment, Health and Safety
EHSI Electronic Horizontal Situation Indicator
EHSR Essential Health and Safety Requirements
EI Environmental Impact
EIAS Equipment Impact Assessment Sheet
EIC Engineering Integration Centre
EICU EFB Interface and Communication Unit
EIF Engine Interface Function
EIPM Engine Interface Power Management
EIPMU Engine Interface Power Management Unit
EIRD Equipment Installation Requirement Dossier
EIS Electronic Instrument System
EIS Entry Into Service
EIS Engine Interface System
EIU Engine Interface Unit
EIVMU Engine Interface and Vibration Monitoring Unit
EL Electric
EL Equipment List
ELA Electrical Load Analysis
ELAC Elevator Aileron Computer
ELAN Ethernet Local Area Network
ELAPS Elapsed Time
ELB Electronic Log Book
ELC Electronic Library Computer
ELC Emergency Line Contactor
ELCO Exterior Lights Controller
ELEC Electric
ELEC Electrical
ELEC Electricity
ELEK Electronic
ELEKS Electronics
ELEV Elevation
ELEV Elevator
ELEVN Elevation
ELEVR Elevator
ELF Engineering support and data Link Function
ELFDB Emergency Light Floor Disconnect Box
ELIPS Engineering tooL for In-service Problem Support
ELM Electrical Load Management
ELMF Electrical Load Management Function
ELMS Electrical Load Management System
ELMU Electrical Load Management Unit
ELO Equipment Location Overview
ELOS Equivalent Level Of Safety
ELPU Emergency Lightning Protection Unit
ELS Electronic Library System
ELS Emergency Lighting System
ELSD Electrical Load Sensing Device
ELT Emergency Locator Transmitter
ELV Elevation
EM ElectroMagnet
EM Engine Manual
EMC Electromagnetic Compatibility
EMCU Electric Motor Control Unit
EMDB Electrical Main Data Bank
EMEL Edge Mounted Emergency Llight
EMER Emergency
EMI Electromagnetic Interference
EMISN Emission
EMLG Enhanced Main Landing Gear
EMLS Emergency Lighting System
EMMA Ergonomie Merkmal Methode Airbus
EMMAA Extended Management for Maintenance Analysis Airplane
EMP Empennage
EMP Electric Motor Pump
EMR Engineering Management Review
EMS Equipment Modification Sheet
EMS Environmental Management System
EMSP Extended Mechanical Systems Perimeter
EMU Engine Monitoring Unit
EMU Engine Maintenance Unit
EMWS ElectroMechanical Window Shade
EN European Norm
ENBL Enable
ENCD Encode
ENCDR Encoder
ENCL Enclosure
END Endurance
ENE Exp�rimentateur Navigant d'Essais
ENEC Emergency Normal to Emergency Contactor
ENG Engine
ENGD Engaged
ENGO ENGineering Occurrence
ENG OUT Engine Out
ENGR Engineer
ENM Electrical Network Management
ENMF Electrical Network Management Function
ENMS Electrical Network Management System
ENMU Electrical Network Management Unit
ENP Estimated Normal Payload
ENRGZ Energize
ENRM Ethernet Network Router Module
ENT Entry
ENTR Entrance
ENV Envelope
ENV Environment
ENVMOD Envelope Modulation
EO Engine Out
EO Engineering Order
EO Electrical Outlet
EO ACCEL ALT Engine Out Acceleration Altitude
EOC Engineering Order Change
EOP End of Part
EOS Electronic Overspeed System
EOSID Engine Out Standard Instrument Departure
EOT End of Tape
EO THR RED SPD Engine Out Thrust Reduction Speed
EoY End of Year
EP Entry Panel
EP Engineering Panel
EPAC Entity per Aircraft Change
EPC External Power Contactor
EPCU External Power Control Unit
EPD Extended Principle Diagram
EPDC Electrical Power Distribution Center
EPDS Electrical Power Distribution System
EPESC Enhanced Passenger Entertainment System Controller
EPGS Electrical Power Generation System
EPLC External Power Line Contactor
EPLD Electronically Programmable Logic Device
EPM Engineering Program Manager
EPPT Electronic Performance
EPR Engine Pressure Ratio
EPR Equipment Problem Report
EPR Exhaust Pressure Ratio
EPR.D EPR Descent
EPR.L EPR Latch
EPRM, E-PRM Engineering Program Review Meeting
EPROM Erasable Programmable Read Only Memory
EPS Extended Preferred Supplier
EPSU Emergency Power Supply Unit
EPU Emergency Power Unit
EPU Estimated Position Uncertainty
EQIR Engineering Query Investigation report
EQN EQuipment Number
EQPT Equipment
ER Extended Range
ER Elevator Rib
ER Engine Run
ER Error Report
ERAI Emergency Ram Air Inlet
ERECT Erection
ERG Electromechanical Release Gate
ERHC Electrical Routing and Harness Concept
ERHCD Electrical Routing and Harness Concept Dossier
ERL Economic Repair Life
ERM Enterprise Risk Management
ERMM En Route Moving Map
EROM Electronic Readout Machine
ERP Enhanced Runaway Protection
ERP Emergency Response Plan
ERP Enterprise Resource Planning
ERR Error
ERS Embodiment Repercussion Sheet
ERS Erase
ERS Erased
ERT Emergency Response Team
ERU Engine Relay Unit
ES Early Start Date
ESAO Essai Sol Assist� par Ordinateur
ESB Electrical System BITE
ESB Evaluation Service Bulletin
ESBF Electrical System BITE Function
ESC Escape
ESD Electro Sensitive Device
ESD ElectroStatic Discharge
ESD Electronic System Display
ESD Electrical Schematic Diagram
ESDB Element Standard Data Bank
ESDB Element Standard Database
ESDCR Electrical Schematic Diagrams Common Repository
ESDN Extended System/Structure Description Note
ESEC Emergency Smoke/Evacuation Contactor
ESF Equivalent Safety Finding
ESG Evaluated Service Goal
ESG Extended Service Goal
ESI Electrical System Installation
ESLB ECAM System Logic Book
ESLD ECAM System Logic Data
ESMKTC Emergency Smoke Tie Contactor
ESN Electrical Structure Network
ESP Electrical Standard Practices
ESPM Electrical Standard Practices Manual
ESPU External Sources Protection Unit
ESR European Staff Requirement
ESS Essential
ESS Engine Section Stator
EST Estimated
EST Electronic Support Tools
ESTAC Emergency Static inverter AC Contactor
ESTC Emergency STatic inverter Contactor
ESU Ethernet Switch Unit
ESWL Equivalent Single Wheel Load
ET Elapsed Time
ETA Estimated Time of Arrival
ETACS External and Taxiing Aid Camera System
ETBS Edge To Be Staggered
ETC Envelope Temporary Change
ETC Executive Technical Council (or Committee)
ETC Estimate To Complete
ETD Estimated Time of Departure
ETDS Engineering Technical Data Service
ETE Estimated Time En Route
ETHNET Ethernet
Etio.Ag. Etiologic Agent
ETL Engineering Team Leader
ETLC Emergency TR Line Contactor
ETO Estimated Time Over
ETOPS Extended Range Operations for Two-Engine Aeroplanes
ETP Equal Time Point
ETP Equi-Time Point
ETR Enterprise Template Repository
ETRAC Electronic Thrust Reverser Actuation Controller
ETRAS Electrical Thrust Reverser Actuation System
ETS Equipment Technical Specification
ETSO European Technical Standard Order
ETT Estimated Time for Takeoff
ETW European Transonic Wind Tunnel
EU European Union
EUAD European Union Airworthiness Directive
EULA End User Licence Agreement
EUPB Electronic Unit Protection Box
EUT Equipment Under Test
EV Electro Valve
EV Earned Value
EVAC Evacuate
EVAC Evacuation
EVM Earned Value Management
EVMU Engine Vibration Monitoring Unit
EWD Engine/Warning Display
EWIS Electrical Wiring Interconnection System
EWS Electrical Window Shades
EWS Electronic Warning System
EWS Electrical Window Shade
EX Example
EXC Excitation
EXC Excite
EXCD Excited
EXCESS Excessive
EXCG Exciting
EXCHG Exchange
EXCHGR Exchanger
EXCN Excitation
EXDLS External Door Locking System
EXH Exhaust
EXLCO EXterior Light Control
ExMR Executive Management Review
EXP Expansion
Expl. Explosive
EXSTG Existing
EXT Exterior
EXT External
EXT Extend
EXT Extension
EXTC Extract
EXTCD Extracted
EXTCG Extracting
EXTG Extending
EXTIG Extinguishing
EXTIN Extinction
EXTING Extinguish
EXTING Extinguisher
EXTING Extinguishing
EXTIR Extinguisher
EXTN Extension
EXTNDD Extended
EXTR Extractor
EXTR Extrusion
EXTR Extreme
EXTRACT Extraction
EXTRACT Extractor
EXW Ex Works
EZ Electrical Zero
EZA Enhanced Zonal Analysis

F

G

G Green
G Galley
G Grid
G Gyro
G/A Ground-to-Air
G/G Ground Guidance
G/S Glide Slope
GA Go-Around
GA General Application
GAAP Generally Accepted Accounting Principles
GAC Guide Arm Cover
GAD General Assembly Drawing
GAHMM Global Aircraft Health Monitoring and Management
GAIN Electrical GAlley INsert equipment
GAIR General Assembly Inspection Report
GALV Galvanize
GALY Galley
GAM Global Architecture MockUp
GAMMA-A Slope
GAMMA-T Potential Slope
GAMS Ground Asynchronous Messaging Service
GANA Guidelines for Airframer Network Applications
GAPCU Ground and Auxiliary Power Control Unit
GAT General Air Traffic
GATE Glossary of Airbus Terms and Expressions
GATT General Agreement on Tariffs and Trade
GBAS Ground Based Augmentation System
GC General Cargo
GC Ground Coordinator
GCA Ground-Controlled Approach System
GCD Great Circle Distance
GCP General Conditions of Purchase
GCR Generator Control Relay
GCS Global Communication Suite
GCU Generator Control Unit
GCU Ground Cooling Unit
GDD Galley Definition Document
GDE Guide
GDMC Guaranteed Direct Maintenance Costs
GDNC Guidance
GDO Ground Door Opening
GDS GSE Data Sheet
GE General Electric
GEF GEneric Files
GEM Ground Equipment Manual
GEN Generator
GENL General
GENPN GENerate Part Number
GeRS General requirements exchange Resource Site
GES Ground Earth Station
GFE Government Furnished Equipment
GFEM Global Finite Element Model
GFI Ground Fault Interruption
GFLI Ground Fuel Level Indication
GFR Ground Fault Report
GFRP Glass Fiber Reinforced Plastic
GFTM General Familiarization Training Manual
GGA Automatic Generic Groups
GGBU Gear Guard Battery Unit
GGMU Gear Guard Main Unit
GGPCU Generator and Ground Power Control Unit
GGSU Gear Guard Sensor Unit
GIC General Instruction Card
GIDOCA Gestion Informatique de la Documentation Avion
GIE Groupement d'Int�r�t Economique
GIFAS Groupement des Industries Francaises Aeronautiques et
Spatiales
GIM General Introduction Manual
GIN Global Innovation Network
GIP Global Integration Process
GIPSY General Integrated Publication System
GLA Gust Load Alleviation
GLA Green Light for Application
GLASU Galley Light Attendant Service Unit
GLC Generator Line Contactor
GLF Green Light for Flight
GLL Green Light for Lab
GLM General List of Modifications
GLR Generator Line Relay
GLS GBAS Landing System
GLT Ground Leak Test
GM Guidance Material
GMC General Modification Committee
GMF General Market Freighter
GMF Global Market Forecast
GMR Ground Movement Radar
GMT Greenwich Mean Time
GMTBF Guaranteed Mean Time Between Failure
GMTBUR Guaranteed Mean Time Between Unscheduled Removals
GNC Galley Network Controller
GND Ground
GNDLine Groundline
GNLU GNSS Navigation and Landing Unit
GNSS Global Navigation Satellite System
GOBO Graphical Optical Blackout
GOH Ger�te-Organisations-Handbuch
GOLDD Global Online Documentation Delivery
GOM Ground Operations Manual
GOM Ground Operations Method
GP Glide Path
GP Group
GPCM Generation Pack and Coordination Memorandum
GPCU Ground Power Control Unit
GPIRS Global Positioning and Inertial Reference System
GPM General Processing Module
GPP Generic Project Process
GPRS General Packet Radio Service
GPS Global Positioning System
GPSSU Global Positioning System Sensor Unit
GPT Ground Programming Tool
GPU Ground Power Unit
GPWC Ground Proximity Warning Computer
GPWS Ground Proximity Warning System
GR Gear
GR Goods Received
GR Gate Review
GRA Global Risk Assessment
GRAMS General Requirements for Aerostructure and Materials
Suppliers
GRC Glass Reinforced Composite
GRESS General Requirements for Equipment and System Suppliers
GRESSCAM GRESS Compliance Analysis Matrix
GRF Ground Reference Fluctuation
GRFC Global RFC
GRM Geometrical Reference Model
GRP Geographic Reference Point
GRP Glass-Reinforced Plastic
GRP Ground Reference Point
GRP Ground/Geographical Reference Point
GRPT Goods Receipt Processing Time
GRU Ground Refrigeration Unit
GRV Groove
GRVTY Gravity
GS Ground Speed
GSA Ground Service Application
GSAC Groupement pour la S�curit� Aviation Civile
GSB Ground Service Bus
GSE Ground Support Equipment
GSHLD Glareshield
GSM Global System for Mobile Communication
GSM General Structure Manual
GSP Ground Service Panel
GSR Global Safety Risk
GSWO Global Standard Work Operation
GTA General Terms Agreement
GTC General Terms and Conditions
GTD Ground Test Description
GTE Ground Test Engineer
GTHRG Gathering
GTI Ground Test Instructions
GTR Ground Test Requirements
GTS Generic Test Sheets
GUI Graphic Interface Unit
GUI Graphical User Interface
GVI General Visual Inspection
GW Gross Weight
GWDU Galley Waste Disposal Unit
GWR General Working Rules
GY Grey
GYRO Gyroscope

H

H Hot (Electrical Point)
H Runway Thickness
H/O Handover
H/W Hardware
HA Holding Pattern to an Altitude Termination
HACCP Hazard Analysis Critical Control Point
HADC Hybrid Air Data Computer
HALT Highly Accelerated Life Test
HAM Hamburg
HAN Hardware Assurance Nominee
HARN Harness
HAS Heading and Attitude System
HASS Highly Accelerated Stress Screening
HAZ Hazardous
Hazmat Hazardous Material
HBCS High Bandwidth Connectivity System
HC Heater Circuit
HCS Humidification Control System
HCU Head Up Combiner Unit
HCU Hydraulic Control Unit
HD Head
HD Hold
HD Harness Definition
HDD Hard Disk Drive
HDDA Hard Disk Drive Array
HDG Heading
HDG/S Heading Selected
HDL Handle
HDLG Handling
HDM HSDU Data Module
HDO Head of the Design Organization
HDST Headset
HDWHL Handwheel
HE Human Error
HEA Human Error Analysis
HEATG Heating
HEGS Hydraulic Electrical Generating System
HEMEA Human Error Modes and Effect Analysis
HEPA High Efficiency Particulate Air
HERTO High Energy Rejected Takeoff
HES Head-End Switch
HES Head End Server
HESU Head-End Server Unit
HEX Hexadecimal
HF High Frequency
HF Holding Pattern to a Fixed Waypoint
HF Human Factors
HFDR High Frequency Data Radio
HFEC High Frequency Eddy Current
HFP Heated Floor Panel
HGA High Gain Antenna
HHL Horizontal Hinge Line
HHT Hand-Held Tester
HHX Hydraulic Heat Exchanger
HI High
HI Harness Installation
HIBU Hybrid Illumination Ballast Unit
HIC Head Injury Criteria
HID High Intensity Discharge
HIDS Host Intrusion Detection System
HIL Hold Item List
HIPiD Harness Installation Picture Drawing
HIRF High Intensity Radio Frequency
HK Knoop Hardness Test Value
HL High Level
HLAC High Level AC Voltage
HLCL Helical
HLD High Power Amplifier/Low Noise Amplifier/Diplexer
HLD Hold
HLD High Lift Device
HLDC High Level DC Voltage
HLDR Holder
HLPTS High Level Purchaser Technical Specification
HLS High Lift System
HLTY Healthy
HLVVO High Level V&V Objective
HM Holding Pattern with a Manual Termination
HMC Hydromechanical Control
HMC Hydraulic Monitoring and Control
HMCA Hydraulic Monitoring and Control Application
HMCRF Hydraulic Monitoring and Control Remote Function
HMDU Hatrack-Mounted Display Unit
HMG Harmonized Material Group
HMI Human-Machine Interface
HMU Hydromechanical Metering Unit
HMU Hydromechanical Unit
H NAV Horizontal Navigation
HNDST Handset
HNG Hinge
Ho Head of
HO HandOver
HoE Head of Engineering
HOLD Holding
HOR Hold Open Rod
HORIZ Horizontal
HOT High Oil Temperature
HoV Head of Version
HOV Head Of Version
HoV Planning Head of Version Planning
HP High Pressure
HPA High Power Amplifier
HPC High Pressure Compressor
HPC Rear Compressor Rotor and Stator Assembly
HPP Hardware Pin Programming
HPR High Power Relay
HPT High Pressure Turbine
HPT Rear Compressor Drive Turbine Rotor Assembly
HPTACC High Pressure Turbine Active Clearance Control
HPTC High Pressure Turbine Clearance
HPTCC High Pressure Turbine Case Cooling
HPTCC High Pressure Turbine Clearance Control
HPTR High Pressure Turbine Rotor
HPU Head up Projection Unit
HPV HP Bleed Valve
HPV High Pressure Valve
HR Hot Rolled
HR Hour
HR Human Resources
HR Human Reliability
HRBP Human Resources Business Partner
HRD HMI Requirement Document
HRP Horizontal Reference Plane
HRS Hot Rolled Steel
HRS Hours
HRU Highly Resistive Union
HS High Speed
HSD High Speed Data
HSDU High Speed Data Unit
HSE Health, Safety & Environment
HSG Housing
HSI Horizontal Situation Indicator
HSI Hot Section Inspection
HSMU Hydraulic System Monitoring Unit
HSMU Hydraulic System Management Unit
HSS High Speed Steel
HSU HUD Sunvisor Unit
HT Heat
HTD Heated
HTG Heating
HTML Hyper Text Mark-up Language
HTP Horizontal Tail Plane
HTR Heater
HTTP HyperText Transfer Protocol
HT TR Heat Treat
HUD Head-Up Display
HUDC Head Up Display Computer
HUMIDIF Humidification
HV High Voltage
HV Vickers Hardness Test Value
HVDF High and Very High Frequency Direction - Finding Station
HVOF High Velocity Oxygen-Fuel
HVPS High Voltage Power Supply
HW Hardware
HWBPT Hardware Breakpoint
HYD Hydraulic
HZ Hertz

I

I Inertial
I Invoice Card
I/F Interface
I/I Inspection/Interval
I/O Input/Output
I/P Input
I/P Intercept Point
I/P Intercept Profile
I/P Interface Point
IAC Interstate Aviation Committee
IACS Industrial Automation & Control System
IAE International Aero Engines
IAF Initial Approach Fix
IAQG International Aerospace Quality Group
IAS Indicated Airspeed
IAS International accounting standards
IAS Integrator Assembly Specification
IASC Integrated Air System Controller
IATA International Air Transport Association
IATP International Air Transport Pool
IAW In Accordance with
IAWP Initial Approach Waypoint
IB Ice Bucket
IBD Industrial Baseline Document
IBIT Initiated BITE
IBLC Inter-Bus Line Contactor
IBN Identification Beacon
IBU Integrated Ballast Unit
IC Integrated Circuit
IC Invoice Control Card
ICA Instructions for Continued Airworthiness
ICAO International Civil Aviation Organisation
ICARE Illustration, Constraint, Activity, Rule, Entity
ICB Inflow Control Board
ICC Integrated Change Control
ICC International Chamber of Commerce
ICC Integrated Configuration Control
ICC Integrated Circuit Card
ICCAIA Inter Co-ordinating Council of Aerospace Industries
Association
ICCB ISMD Change Control Board
ICCID Integrated Circuit Card IDentifier
ICD Interface Control Document
ICE In Circuit Emulation
ICP Integrated Control Panel
ICPS Integrated Control Panel System
ICS Independent Check Sheet
ICS Interior Color Specification
ICT Information & Communication Technology
ICU Isolation Control Unit
ICU IGGS Controller Unit
ICY Interchangeability
ID Inside Diameter
ID Identification
IDBT Integrated Design and Build Team
IDC Instrument Display Catalog
IDENT Identification
IDENT Identifier
IDENT Identify
IDG Integrated Drive Generator
IDLS Internal Door Locking System
IDM Impact Drawing Management
IDOLS In-service Data tools
IDP Integrated Data Processing
ID PL Identification Plate
IDS Intrusion Detection System
IDU Interactive Display Unit
IEC International Electrotechnical Commission
IECHA Intrinsic/Environmental Conditions Hazard Analysis
IEEE Institute of Electrical and Electronic Engineers
IES Industrial Evaluation Sheet
IETF Internet Engineering Task Force
IF Initial Fix
IF Intermediate Frequency
IFA Integrated Final Assembly
IFA International Federation of Airworthiness
IFD Installation and Functional Design data
IFE In-Flight Entertainment
IFEC In-Flight Entertainment Center
IFEM Interface Finite Element Model
IFES In-Flight Entertainment System
IFP In-Flight Performance Computation Program
IFPA InFlight Performance Application
IFR Instrument Flight Rules
IFRS International financial reporting standards
IFS Inner Fixed Structure
IFSD In-Flight Shut Down
IFTB In flight Turn back
IGA Intermediate Gain Antenna
IGB Inlet Gear Box
IGDS Inert Gas Distribution System
IGGS Inert Gas Generation System
IGN Ignition
IGSC Inert Gas System Control
IGV Inlet Guide Vane
IGWI Integrated Galley Warming Insert
IHA Intrinsic Hazard Analysis
II Installation Instructions
IIPD Illustrated Initial Provisioning Document
IL Interface List
ILF Integrated Loading Facilities
ILLUM Illumination
ILLUMD Illuminated
ILS Instrument Landing System
IM Inner Marker
IM Interpretative Material
IMA Integrated Modular Avionics
IMACS Information Management Aircraft-ground Communication
System
IMC Indirect Maintenance Cost
IMCC Information Management Common Chassis
IME Integrated Maintenance Extract
IMEI International Mobile Equipment Identifier
IML Integration Maintenance Load
IML Inner Mould Line
IMM Immediate
IMPACT Improvement Manufacturer Program for Airbus Customer
Training
IMR Interlock Monitoring Relay
IMRBP International MRB Policy Board
IMU Inertial Measurement Unit
INA Initial Approach
INAD In-service Need Anticipation Dossier
INB Inbound
INBD Inboard
INCLG Including
INCR Increment
INCR Increase
IND Indicator
INDG Indicating
INFO Information
INHI Inhibit
INHIB Inhibit
INHIB Inhibited
INHIB Inhibition
INIT Initial
INIT Initialization
INOP Inoperative
INP Input
INR Inner
INRTL Inertial
INS Inertial Navigation System
INSP Inspection
Inst Install
INST Instinctive
INST Instrument
INSTL Installation
INSTLLD Installed
INSTM Instrumentation
INSUL Insulate
INSUL Insulation
INSUL Insulator
INT Interior
INT Interrupt
INT Intersection
INTA Instituto Nacional de T�cnica Aeroespacial
INTCON Interconnection
INTCP Intercept
INTEG Integral
INTEG Integrally
INTEN Intensity
INTERCOM Intercommunication
INTFC Interface
INTG Integral
INTGT Integrate
INTGT Integrating
INTL Internal
INTLK Interlock
INTMD Intermediate
INTMT Intermittent
INTPH Interphone
INTR Interior
INTRG Interrogate
INTRG Interrogator
INTRPT Interrupt
INU Inertial Navigation Unit
INV Inverter
INWP Intermediate Waypoint
IOC Indirect Operating Cost
IOE Initial Operating Experience
IOM Input/Output Module
ION Innovations, Operations and Networks
IOR Immediate Operational Requirement
IORS Internal Occurrence Reporting System
IOS Initial Operation Support
IoT Internet of Things
IP Intermediate Pressure
IP Initial Provisioning
IP Internet Protocol
IP Invoice Packing Card
IP Interested Party
IP Intellectual Property
IP Interface Point
IP Issue Paper
IPA Industrial Process Assessment
IPC Illustrated Parts Catalog
IPC Intermediate Pressure Bleed Check Valve
IPCA Industrial Process Control Assessment
IPCA Industrial Process Control Assessment
IPCC Intergovernmental Panel on Climate Change
IPCOM Internet Protocol Communication
IPCT Initial Provisioning Coordination Team
IPCU Ice Protection Control Unit
IPCV Intermediate Pressure Check Valve
IPD Illustrated Provisioning Document
IPD Initial Provisioning Data
IPDU Ice Protection Data Unit
IPEG International Research & Technology Partnerships Exchange
Group
IPL Illustrated Parts List
IPMA International Project Management Association
IPO Initial Public stock Offering
IPO Initial Public Offering
IPP Integrated Production Programme
IPPU Instrumentation Position Pick-off Unit
IPR Intellectual Property Rights
IPRAM Integrated Prerecorded Announcement Module
IPS Incorrect Phase Sequence
IPS Individual Product Specification
IPSM Intelligent Power Supply Module
IPT Inadvertent Power Transfer
IPT Integrated Production Team
IPTCC Intermediate Pressure Turbine Case Cooling
IPV Indicator Para Visual
IQP Integrated Quality Plan
IR Inertial Reference
IR Implementing Rules
IRAN Inspection and Repair As Necessary
IRD Integrated Receiver Decoder
IRD Inspection Requirements Dossier
IRDC Interface Remote Data Concentrator
IRDM Integrated Receiver Decoder Module
IRL Integration Readiness Level
IRP Integrated Refuel Panel
IRQ Interrupt Request
IRR Internal Rate of Return
Irr.M Irritating Material
IRS Inertial Reference System
IRS Inspection Report System
IRU Inertial Reference Unit
IS Information Systems
IS Information System
IS Information System
IS Interface Sheet
ISA International Standard Atmosphere
ISA Inertial Sensor Assembly
ISAMI Improvement of Structure Analysis through Multi-disciplinary
Integration
ISATFM In-Service Aircraft Technical Flight Manual
ISB Inter-System Bus
ISB Inspection Service Bulletin
ISC Industry Steering Committee
ISCD Inter System Communication Data
ISD Inadvertent Slide Deployment
ISDN Integrated Services Data Network
ISDN Information System Data Network
ISDN Integrated Services Digital Network
ISDPL Inadvertent Slide Deployment Prevention Light
ISDS In-service Data Sharing
ISDU Inertial Sensor Display Unit (IRS)
ISF Information Security Forum
ISG Instrument Symbol Generator Unit
ISG Integrated Starter Generator
ISG Intermediate Service Goal
ISI In-Service Information
ISIS Integrated Standby Instrument System
ISM Illumination Sensor Module
ISM International Supply Chain Manager
ISMD Inter System Maintenance Data
ISMS Information Security Management System
ISO International Standardization Organization
ISO In-Service Occurrence
ISOEG In-Service Operations Evaluation Group
ISOL Isolation
ISP Integrated Static Probe
ISP In-Service Problem
ISP Integrated Simulation Package
ISPL IS Project Leader
ISPSS In-Seat Power Supply System
ISPSU In-Seat Power Supply Unit
ISPU In-Seat Power Supply Unit
ISR Information System Representative
ISRO In-Service Reportable Occurrence
ISS Inertial Sensor System
ISU Inertial Sensor Unit
ISWL Isolated Single Wheel Load
IT Interruption
IT Information Technology
ITCM Initial Technical Coordination Meeting
ITCT ISMD Templates Check Tool
ITH Intake Housing
ITP Intention To Proceed
ITP In-Trail Procedure
ITR Integration Test Request
ITS Internal Technical Specification
ITU International Telecommunication Union
IV Isolation Valve
IVASEB Integrated Video and Audio Seat Electronic Box
IVCP Integrated Value Creation Project
IVD Ion Vapor Deposit
IVMS Internal Video Monitoring System
IVP Integrated Version Planning
IVS Inertial Vertical Speed
IW Innovation Works

J

J&T Jigs and Tools
JAA Joint Aviation Authorities
JAM Jammed
JAM Jamming
JAMG Jamming
JAR Joint Aviation Requirements
JB Junction Box
JCAB Japan Civil Aviation Bureau
JCI Joint Change Instruction
JCP Joint Change Process
JCP Joint Control Process
JCR Joint Change Request
JCT Junction
JDP Joint Definition Phase
JEMTOSS Jet Engine Maintenance Task Oriented Support System
JEP Jeppesen
JFGW Jettison Final Gross Weight
JIC Job Instruction Card
JID Jeppesen Inflight Database
JIT Just In Time
JITX Jeppesen Integrated Tool Kit X
JK Jack
JLS Jack Level System
JOEB Joint Operation Evaluation Board
JOG Joggle
JTC Jigs and Tools Component
JTD Jigs and Tools Definition
JTS Jigs and Tools Solution
JTSN Jettison
JUNCTN Junction
JV Joint Venture
 

K

K Degrees Kelvin
K K
K Subgrade Reaction Modulus
KA Knowledge Acquisition
KAM Key Account Manager
KANDU Ku/Ka-band Aircraft Networking Data Unit
KB/s Kilo Bits per Second
KBD Keyboard
KBE Knowledge Based Engineering
KCCU Keyboard and Cursor Control Unit
KDD Key Design Drivers
KDMS Kongsberg Data Manufacturing System
KE Knowledge Engineering
KFS Kaspersky File System
KIMS Kongsberg Integrated Management System
KM Knowledge Management
KOM Kick-Off Meeting
KOR Kick Off Review
KPI Key Performance Indicator
KPP Key Process Parameter
KRFU Ku/Ka-band Radio Frequency Unit
KRUG Krueger
KSA Key Stage Assessment
KU Keyboard Unit

L

L Left
L Length
L/G Landing Gear
L/HIRF Lightning/High Intensity Radiated Fields
L1/L2 Level 1, Level 2 Analysis (per MSG-3)
LA Linear Accelerometer
LAF Load Alleviation Function
LAG Lagging
LAI Last Article Inspection
LAILA LAvatory Interface and Light Adapter
LAM Laminate
LAMM Lights, Audio and Miscellaneous Module
LAN Local Area Network
LAND Landing
LAO Lateral Air Outlet
LAP List of Applicable Publications
LAR List of Applicable Rules
LAT Lateral
LAT Latitude
LATC Live Animal Transportation Calculation
LATD List of Applicable Technical Documents
LAU Linear Accelerometer Unit
LAV Lavatory
LAYT Layout
LBA Logical Bus Application
LBA Luftfahrt Bundes Amt
LBA Left Bottom Aft
LBC Local Booking Code
LBF Left Bottom Forward
LBIP Lifecycle for Business Improvement Projects
LBIP+ Leaner Business Improvement Project
LBoM Logistic Bill of Material
LBP Left Bottom Plug
LC Line Contactor
LC Labour Cost
LC Logistic Conditions
LCA Life Cycle Assessment
LCAE Local Chief Airworthiness Engineer
LCC Life Cycle Cost
LCD Liquid Crystal Display
LCDT Load Compressor Discharge Temperature
LCF Left Center Fuselage
LCH Latch
LCHG Latching
LCIT Load Compressor Inlet Temperature
LCL Line Check List (Maintenance)
LCN Load Classification Number
LCP Local Control Panel
LCSD Line Check Support Data
LCT Locate / Location / To Locate
LCTR Locator
LD Lower Deck
LD Left Display
LD Load
LDA Localizer-type Directional Aid
LDA Laser Doppler Anemometry
LDC Local Door Controller
LDC Local Domain Coordinator
LD CAB Lower Deck Cabin
LDCC Lower Deck Cargo Compartment
LDCD Lower Deck Cargo Door
LDF Lower Deck Facilities
LDG Landing
LD GALY Lower Deck Galley
LDG GR Landing Gear
LDI Landing Direction Indicator
LD LAV Lower Deck Lavatory
LDM Loads Dispatch Manager
LDMCR Lower Deck Mobile Crew Rest
LDPA LanDing Performance Application
LDS Laptop Docking Station
LDS Load Delivery Service
LDSF Lower Deck Surveillance Function
LE Leading Edge
LE Log Entry
LEAU Large Environment Accelerometer Unit
LED Light Emitting Diode
LEHGS Local Electro-Hydraulic Generation System
LEL Lower Explosive Limit
LEO Low Earth Orbit
LEP List of Effective Pages
LER Leading Edge Rib
LETD List of Effective Technical Data
LF Low Frequency
LF Late Finish Date
LFR Low Frequency Radio Range
LFTE Lead Flight Test Engineer
LG Light Green
LGA Low Gain Antenna
LGB Landing Gear Bay
LGCIS Landing Gear Control Indication System
LGCIU Landing Gear Control and Interface Unit
LGCM Light Green Communication Manager
LGERS Landing Gear Extension and Retraction System
LGL LED Gobo Light
LGMS Landing Gear Management System
LGMS Landing Gear Monitoring System
LGND Legend
LGRDC Landing gear Remote Data Concentrator
LGWSS Landing Gear Well Surveillance System
LH Left Hand
LIB Loudspeaker and Indicator Box
LIBOR London Inter-Bank Offered Rate
LIE Lightning Indirect Effects
LiFE Lean in Fuselage Engineering
LIFO Last In First Out
LIM Limit
LIM Limitation
LIM Limiter
LIM Limiting
LIM Loads Interface Model
LIMG Limiting
LIPPLE Lowest Intelligible Phone Power Level
LIQD Liquid
LIR Logistic Information Referential
LIS Localizer Inertial Smoothing
LISA Light Interface Standardization Adapter
LKD Locked
LKG Locking
LKR Locker
LKSHFT Lockshaft
LL Latitude/longitude
LL Low Level
LL1 Waypoint from Waypoint List Abbreviated
LLA Lavatory Light Adapter
LLAC Low Level AC Voltage
LLDC Low Level DC Voltage
LLDC Low Level Direct Current
LLF Lateral Load Fitting
LLI Long Lead Time Item
LLL Low Level Light
LLO Long Leadtime Option
LLP Lead Logistics Provider
LLS Left Line Select Key
LLS Liquid Level Sensor
LLS Low-Level Solid Radioactive Material
LLSELV Left Lock Selector Valve
LMC Least Material Condition
LMC Last Minute Change
LMES Loss of Main Electrical Supply
LMF Local Maintenance Function
LMM Compass Locator at Middle Marker
LMP Left Middle Plug
LMP Line Maintenance Part
LMS Leakage Measurement System
LMT Local Mean Time
LNA Label Not Available
LNA Low Noise Amplifier
LNG Long
LNR Linear
LO Low
LO Local Oscillator
LO Link Object
LOC Localizer
LOC List of Overhaulable Components
LOCKG Locking
LODD Last acceptable On Dock Date
LOFT Line Orientated Flight Training
LOG Logic
LOGO Logogram
LoI Level of Involvement
Lo Lo Handling Load On Load Out Handling
LOM Compass Locator at Outer Marker
LONG Longitude
LONG Longitudinal
LONGL Longitudinal
LONGN Longeron
LOP Low Oil Pressure
LOP Life Operational Process
LOP Life Of Product
LOPA Layout of Passenger Accommodation
LOPA Layout of Passenger Accommodations
LO PR Low Pressure
LORAN Long Range Aid to Air Navigation
LOS Lavatory Occupied Sign
LOT Lot Number
LOV Limit Of Validity
LP Low Pressure
LP Line Pilot
LPC Low Pressure Compressor
LPC Less Paper in the Cockpit
LPC Low Compressor Rotor and Stator Assembly
LPCNG LPC New Generation
LPE Laissez-Passer Exceptionnel
LPFEV Long Power Failure Event
LPFK Lighted Program Function Keyboard
LPO Landings per Overhaul
LPT Low Pressure Turbine
LPT Front Compressor Drive Turbine Rotor Assembly
LPT Local Programme Team
LPTACC Low Pressure Turbine Active Clearance Control
LPTC Low Pressure Turbine Clearance
LPTCC Low Pressure Turbine Case Cooling
LPTCC Low Pressure Turbine Clearance Control
LPTR Low Pressure Turbine Rotor
LPU Lightning Protection Unit
LR Long Range
LRE List of Radioactive and Hazardous Elements
LRI Line Replaceable Item
LRI Liquid Resin Infusion
LRM Line Replaceable Module
LROPS Long Range Operations
LRRA Low Range Radio Altimeter
LRU Line Replaceable Unit
LS Landing System
LS Loudspeaker
LS Low Speed
LS Line Select Key
LS Late Start Date
LS Loadable Software
LS Line Station
LSA Low Specific Activity Radioactive Material
LSA Low Speed Aileron
LSAP Loadable Software Aircraft Parts
LSB Least Significant Bit
LSB Lower Sideband
LSBM Load Secure Batch Media
LSC Load Signature Certificate
LSC Least Significant Character
LSD Logistic Support Date
LSDS Load Sensing Drive Strut
LSI Large Scale Integrated/Integration/Integrator
LSP Low Speed
LSP Loadable Software Part
LSR Load Shedding Relay
LSR Last Significant Bit
LSSELV Left Steering Selector Valve
LSU Lavatory Service Unit
LSV Left Servo metering Valve
LT Light
LT Teleloading
LTA Left Top Aft
LTB Load Transfer Bracket
LTD Limited
LTD PLT Lighted Plate
LTF Left Top Forward
LTG Lighting
LTM Livestock Transportation Manual
LTM Lab Test Mean
LTO Landing and TakeOff
LTP Left Top Plug
LTP Lead Transport Provider
LTR Lab Test Request
LTR Laboratory Test Requirements
LTR Laser Tracker Record
LTS Lights
LTS Load and Trim Sheet Software
LTV Loan To Value
LUAR Laboratory Unit Acceptance Review
LV Low Voltage
LVDS Low Voltage Differential Signaling
LVDT Linear Variable Differential Transducer
LVL Level
LVL/CH Level Change
LVO Low Visibility Operations
LVP Low Visibility Procedure
LVR Lever
LVR Louver
LVT Linear Voltage Transducer
LW Landing Weight
LW Left Wing
LWP Large Work Package
LWR Lower
LWSA Lavatory Water Supply Assy
L-x Lavatory - X
LZA Lightning/HIRF Zonal Analysis
 

M

M Magenta
M Mode
M/L Mood Lighting
M&P Materials and Processes
M&T Methods & Tools
MA Maintenance Annunciator
MA Manufacturing Aircraft
MAA Maximum Authorized IFR Altitude
MAAI Military Aircraft Accident Incident Investigation
MAAP Members and Associated Partners
MABH Minimum Approach Breakoff Height
MAC Mean Aerodynamic Chord
MAC Maintenance Action Classification
MACH Machine / Machining / To Machine
MACT Module Application Configuration Table
MADAR Malfunction Detection Analysis and Recording Subsystem
MAF Maintenance Access Function
MAG Magnetic
MAG Magazine
Mag.M Magnetized Material
MAG DEC Magnetic Declination
MAGN Magnetron
MAG VAR Magnetic Variation
MAIDS Multipurpose Automatic Inspection and Diagnostic System
MAIN MUX Main Multiplexer
MAINT Maintenance
MAJ Major
MALS Medium Intensity Approach Light System
MALSR Medium Intensity Approach Light System with Runway Align
MAN Manual
MANO MANufacturing Occurrence
MAP Ground Mapping
MAP Master Annunciator Panel
MAP Mise au point
MAP Missed Approach Segment
MAPIS Material and Process, Interior, System
MAPSP Master Attendant Passenger Service Panel
MAREP Maintenance Report
MAS Modification Approval Sheet
MAS Modulated Air System
MASI Mach Airspeed Indicator
MAT Multi-purpose Access Terminal
MAT Maintenance Access Terminal
MAT MOD Assessment Tool
MAWP Missed Approach Waypoint
MAX Maximum
MBN Metallic Bonding Network
MBSE Model-Based Systems Engineering
MC Master Change
MC Material Cost
MC Means of Compliance
MC Motor Controller
MC Manufacturing Component
MC.RT Manage Corporate / Manage Research & Develop New
Technologies
MCA Minimum Crossing Altitude
MCA Major Component Assembly
MCA Maintenance Central Access
MCBF Mean Cycles between Failures
MCC Modification Customer Chart
MCC Multi Crew Cooperation
MCC Maintenance Control Center
MCC Major Change Coordinator
MCCP Major Change Certification Plan
MCCS Major Change Certification Summary
MCCT Module Common Configuration Table
MCD Movable Class Divider
MCDL Master Configuration Deviation List
MCDU Multipurpose Control & Display Unit
MCE Motor Control Electronic
MCH Machined
MCL Maximum Climb
MCPU Motor Control and Protection Unit
MCR Manufacturer Change Request
MCR Maximum Cruise
MCRI Military Certification Review Item
MCS Mission Computer Subsystem
MCS MultiChannel Aviation Satellite Communication System
MCT Maximum Continuous Thrust
MCU Master Control Unit
MCU Modular Concept Unit
MCUR Mean Cycle Between Unscheduled Removals
MCVL Manual Configuration Variation List
MCW Modulated Continuous Wave
MD Main Deck
MDA Minimum Descent Altitude
MDA Minimum Decision Altitude
MDAU Modular Data Acquisition Unit
MDB Modification DataBase
MDCC Main Deck Cargo Compartment
MDCD Main Deck Cargo Door
MDCLS Main Deck Cargo Loading System
MDDU Multipurpose Disk Drive Unit
MDF Medium Frequency Direction Finding Station
MDH Minimum Descent Height
MDL Module
MDM Material Data Meeting
MDM Manufacturing Data Management
MDM-R Manufacturing Data Management for Resources
MDOC Manufacturing DOCument
MDR Multiregional DBS (Digital Broadcast System) Receiver
MDR Master Difference Requirements
MDU Manual Drive Unit
MDU Multiplier Divider Unit
MDU Mobile Delivery Unit
ME Manufacturing Engineering
MEA Minimum En Route IFR Altitude
MEAS Measurement
MEASRG Measuring
ME-BMS Manufacturing Engineering- Business Management System
MEC Main Engine Control
MECH Mechanic
MECH Mechanical
MECH Mechanism
MED Medium
MEDB Model/Engine DataBase
MEL Minimum Equipment List
MEM Memory
MEO Middle Earth Orbit
MEP Main Executive Program
MER Manufacturing Engineering Responsible
MES Main Engine Start
MES Maintenance Economics Sheet
MET Meteorological
MEV Main Electro Valve
MEV Million Electron-Volts
MEW Manufacturer's Empty Weight
MF Medium Frequencies
MFA Memorized Fault Annunciator
MFD MultiFunction Display
MFF Mixed Fleet Flying
MFG Manufacturing
MFP Maintenance Facility Planning
MFP MultiFunction Probe
MFP Mixed Fission Products
MFR Manufacturer
MFS MultiFunction Sensor
MFT Multi Functional Team
MFTW Maximum Design Fuel Transfer Weight
MFU MOD Follow-Up
MFW Maximum Design Flight Weight
MG Maturity Gate
MG Milestone Gate
MGB Main Gear Box
MGCA Main Group of Constituent Assemblies
MGMT Management
MGR Maturity Gate Review
MGT Management
MGY Master Geometry
MHE Magnetic Heading East
MHEA Maintenance Human Error Analysis
MHM Maintenance HMI Manager
MHN Magnetic Heading North
MHS Magnetic Heading South
MHSU Magnetic Heading Sensor Unit
MHW Magnetic Heading West
MHZ Megahertz
MI Magnetic Indicator
MI Manufacturing Instructions
MIB Management Information Base
MIC Microphone
MICA Minimum Continuous Activity
MICADA Maintenance Improved Cabin Data Authoring
MICBAC Micro-System Bus Access Channel
MID Middle
MID Modification Information Document
MIDU Multi-Input Interactive Display Unit
MILA MIni Light Adapter
MIMOS Maintenance Information Management tOols for Systems
MIN Minimum
MIN Minor
MIN FUEL Minimum Fuel
MIN TIME Minimum Time
MIP Maintenance Information Printer
MIP Master Interphone Panel
MIP Manage Integrated Planning
MIPO Manually Issued Purchase Order
MIPS Maintenance Information and Planning System
MIS Maintenance Information System
MISC Miscellaneous
MISP Major In Service Problem
MISS db Major In Service Solution-database
MJW Maximum Jacking Weight
MKC Manufacturing Key Characteristic
MKGS Markings
MKR Marker (radio) Beacon
MLA Maneuver Load Alleviation
MLAP Maintenance Laptop
MLB Maintenance LogBook
MLC Mood Lighting Controller
MLD Molded
MLFAP Mood Lighting Flight Attendant Panel
MLG Main Landing Gear
MLGB Main Landing Gear Bay
MLGSS Main Landing Gear Support Structure
MLI Magnetic Level Indicator
MLIH Magnetic Level Indicator Housing
MLP Multiple Load Path
MLS Microwave Landing System
MLW Maximum Landing Weight
MM Middle Marker
MM Maintenance Manual
MM Main Multiplexer
MM Manufacturing Manager
MMC Maximum Material Condition
MMDB Mechanical Main Data Bank
MME Maintenance & Maintainability Evaluation
MMEL Master Minimum Equipment List
MMES Man-Machine Environment System
MMH/FH Maintenance Man Hours per Flight Hour
MMI Manual Magnetic Indicator
MMR Multi-Mode Receiver
MNE M�canicien Navigant d'Essai
MNFOLD Manifold
MNI Manufacturing Notice Instruction
MNPS Minimum Navigation Performance Specification
MoA Memorandum of Agreement
MOA Maintenance Organisation Approval
MoB Make or Buy
MOB Mobile
MoC Means of Compliance
MOC Methods Of Compliance
MOCA Minimum Obstruction Clearance Altitude
MOD Modification
MOD Modulator
MOD/MP Modification & Modification Proposal
MOD/V Modulating Valve
Modem Modulator-Demodulator
MODLTR Modulator
Modman Modem/Manager
MOE Maintenance Organisation Exposition
MOI Modification Operational Impact
MOKA Methodology and software tools Oriented to KBE Applications
MoM Minutes of Meeting
MOM Maintenance Organization Manual
MON Monitor
MON Monitored
MON Monitoring
MONG Monitoring
MONMT Monument
MOR Modular Overceiling Rack
MORA Minimum Off Route Altitude
MORE Mobile Online Reclamation
MORV Mixer Overpressure Relief Valve
MOS Metal Oxyde Semiconductor
MOS Maintenance Operation Software
MOT Motor
MOT Motorized
MOU Memorandum of Understanding
MP Modification Proposal
MP Main Processor
MP Maintenance Practices
MP Maintenance Procedure
MP Maintenance Panel
MP Military Pilot
MP.AC Manage Aircraft Configuration and Product Offer
MPA Maximum Power Assurance
MPB Micro Processor Bipolar
MPC Maintenance Panel Committee
MPD Maintenance Planning Document
MPDS Maintenance Planning Data Support
MPDS Mobile Packet Data Service
MPFAP Multi Purpose Flight Attendant Panel
MPL Maximum Permitted Life
MPM Maintenance Program Manager
MPM MP + MOD (Modification Proposal + Modification)
MPP Maintenance Program Proposal
MPPT Maintenance Program Publication Trigger
MPR Multipurpose Register
MPS Maximum Performance Specifications
MPS Multiplex Power Supply
MPS Master Production Schedule
MPS Maintenance Panel Screening
MPT Manufacturing Process Team
MPU Modem Processor Unit
MPU Magnetic Pickup
MPV Manifold Pressure Valve
MPV Multi Purpose Vehicle
MQM Mobile Quality Management
MQPB Minimum Quantity Price Break
MRA Minimum Reception Altitude
MRB Maintenance Review Board
MRB Materials Review Board
MRBD Maintenance Review Board Document
MRBR Maintenance Review Board Report
MRG Main Refuel Gallery
MRIU Maintenance & Recording Interface Unit
MRL Manufacturing Readiness Level
MRL Material Readiness Level
MRO Maintenance and Repair Organization
MRP Material Requirements Planning
MRP Material Resource Planning
MRP Manufacturing Reference Point
MRS Maintenance, Reliability, Supportability
MRS Malfunction Reporting Systems
MRTT Multi Role Tanker Transport
MRW Maximum Ramp Weight
MS Maintenance Schedule
MS Military Standard
MS Master Schedule
MS Manufacturing System
MSA Minimum Safe Altitude
MSA Master Services Agreement
MSA Measurement System Analysis
MSB Most Significant Bit
MSB Modification Service Bulletin
MSC Airbus Materiel Support Centre
MSC Maintenance Steering Committee
MSCN Manufacturer Specification Change Notice
MSD Mass Storage Device
MSD Minimum Separation Distance
MSDS Material Safety Data Sheet
MSE Maintenance System Extract
MSE Machines & Systems Engineer
MSF Multi-System Function
MSG Maintenance Steering Group
MSG Message
MSI Maintenance Significant Item
MSI Medium Scale Integrated
MSI Mechanical System Installation
MSI Mechanical System Installation
MSISDNN Mobile Subscriber Integrated Services Digital Network Number
MSJ Modification Structural Justification
MSL Mean Sea Level
MSL Maintenance Significant Item List
MSL Maintenance System Load
MSM Monitoring System Module
MSMA Manufacturing System Maturity Assessment
MSN Manufacturer Serial Number
MSNa MSN applicability
MSOV Main Deck Shut Off Valve
MSP Microsoft Project
MSPA Multi System Physical Architecture
MSTD Manufacturing Standard Parts
MSTR Master
MSU Media Server Unit
MSU Mode Selector Unit (IRS)
MSU Motor Switching Unit
MSU Magnetic Sensor Unit
MSW Microswitch
MT Mount
MT Mapping Table
MT Manufacturing Tree
MTA Maintenance Task Analysis
MTAD Military Transport Aircraft Division
MTBD Mean Time Between Defects
MTBF Mean Time Between Failures
MTBI Mean Time Between Inspection
MTBIFS Mean Time Between In Flight Shut-down
MTBPR Mean Time Between Premature Removals
MTBR Mean Time Between Removals
MTBT Mean Time Between Trouble
MTBUR Mean Time Between Unscheduled Removals
MTD Maintenance Training Device
MTE Manual Test Equipment
MTG Mounting
MTGC Mounting Center
MTI Multi Tank Indicator
MTM Method Time Measurement
MTN Motion
MTO Maximum Take-Off
MTO M�t�o
MTOGW Maximum Takeoff Gross Weight
MTOM Maintenance Training Organization Manual
MTOP Maintenance Task Operating Plan
MTOW Maximum Takeoff Weight
MTP Maintenance and Test Panel
MTR Meter
MTRM Mid Term Planning Meeting
MTS Maintenance Training Simulator
MTS Mixer Temperature Sensor
MTTF Mean Time to Failure
MTTR Mean Time to Repair
MTTUR Mean Time to Unscheduled Removal
MTUR Mean Time Between Unscheduled Removals
MTW Maximum Taxi Weight
MTXW Maximum Taxi Weight
MU Management Unit
MU Manufacturing Unit
MUX Multiplex
MUX Multiplexer
MV Multivibrator
MVDR Multiple VHF Data Radio
MVEN Modification Validity Extension Notification
MVT Movement
MW Minimum Weight
MWARN Master Warning
MWC Master Warning Computer
MWE Manufacturer's Weight Empty
MWG Maintenance Working Group
MWP Master Warning Panel
MWS Master Warning System
MXR Mixer
MYR Mid-Year Review
MZFCG Maximum Zero Fuel Center of Gravity
mZFW Minimum Zero Fuel Weight
MZFW Maximum Zero Fuel Weight

N

N North
N Neon
N Normal
N/A Not Applicable
N/P Next Page
N/W Nose Wheel
N/WS Nose Wheel Steering
N.O.R Normal Operating Range
N1 Engine Fan Speed
N1 Low Pressure Rotor Speed
N1.D N1 Descent
N1.L N1 Latch
N2 High Pressure Rotor Speed
NA Neutral Axis
NAA National Aviation Authority
NAC Nacelle
NAC Nacelle Air Cooling
NACA National Advisory Committee for Aeronautics
NAC STA Nacelle Station
NADP Noise Abatement Departure Procedure
NAI Nacelle Anti-Icing
NAIADS New Air and Inertia Automatic Data Switching
NAIF NSS ACR Instrumentation Function
NAS Navy and Army Standard
NAS National Aerospace Standard
NASA National Aeronautics and Space Administration
NatCo National Company
NATO North Atlantic Treaty Organization
NATS North American Telephone System
NAV Navigation
NAVAID Navigation Aid
NAWSC No Additional Work to Show Compliance
NBCM Normal Brake Control Manifold
NBD Network Block Device
NBF Network BITE Function
NBM Nicht einzuarbeitende BM
NBPT No Break Power Transfer
NBS National Bureau of Standards
NBSELV Normal Brake Selector Valve
NC Normally Closed
NC Non Conformity
NC Numerical Control
NCAGE NATO Commercial and Government Entity
NCC Nacelle Compartment Cooling
NCD No Computed Data
NCF Non Crimp Fabric
NCF Nose and Center Fuselage
NCF Non Compliance Form
NCH Noise Compensated Headset
NCLL Not Closed & Latched & Locked
NC-N Non Conformity-Notification
NCP Numerical Control Programming
NCR NSS Communication Router
NCU NSS Control Unit
NCU Navigation Computer Unit
NCU Network Control Unit
NCU Normas CASA Utillaje (CASA Tooling Standards)
NCV Nacelle Cooling Valve
ND Navigation Display
ND Navigation Database
NDA Non-Disclosure Agreement
NDB Non-Directional Beacon
NDB Navigation Data Base
NDB Non-Directional Radio Beacon
NDM Noise Definition Manual
NDT Non-Destructive Test
NECTAR New Enhanced Certification Type-Certificate Compliance
System & Rulemaking
NEG Negative
NELI Non-Electrical Galley Inserts
NEO New Engine Option
NEOL Near End Of Life
NFA No Further Action
NFA Non Flyable Aircraft
NFC Not Fully Closed
NFC Near Field Communication
NFO Not Fully Open
NFOV Narrow Field of View
NGCW Next Generation Composite Wing
NGV Nozzle Guide Vane
NHA Next Higher Assembly
NICE Network Integrated Certification Environment
NLA Non-Listed Assembly
NLCP Noise Level Calculation Program
NLFEA Non Linear Finite Element Analysis
NLFEM Non Linear Finite Element Model
NLG Nose Landing Gear
NMI Non Maskable Interrupt
N MOS Negative Metal Oxide Semiconductor
N MOS N-Channel Metal Oxide Semiconductor
NMS Noise Masking System
NMU Noise Masking Unit
NO Normal Operation
NO Normally Open
NO Normal Operation in SSM
No. Number
NonflaG Non-Flammable Compressor Gas
NOPT No Procedure Turn Required
NORM Normal
NOTAM Notice to Airmen
NOTOC Notification to Captain
NOVOLRAM Non-volatile Random Access Memory
NOx Nitrogen Oxides
NOy Nitrous Oxides
NP Non Procurable
NPA Non Precision Approach
NPA Notice for Proposed Amendment
NPI New Product Introduction
NPN Negative-Positive-Negative
NPT National Taper Pipe (Thread)
NPV Net Present Value
NRC Non-Recurring Cost
NRC Non-Recurring Cost
NRE Non-Recurring Expenditure
NRP Navigation Reference Point
NRV Non Return Valve
NRW Net Recoverable Weight
NRZ Non Return To Zero
NS No Smoking
NSA Norme Sud Aviation
NSCM NATO Supply Code for Manufacturers
NSDW Non Specific Design Work
NSE No Safety Effect
NSI Non Standard Instruction
NSIU Nose Static Interface Unit
NSM Network Server Module
NSP New System Policy
NSPI New Standard/Specified Part Introduction
NSS Network Server System
NSU Network Server Unit
NSV Normal Servo Valve
NTC Notice To Crew
NTF Non-Textile Floor covering
NTM Nondestructive Testing Manual
NTO No Technical Objection
NTS Not To Scale
NTSB National Transportation Safety Board
NTSC National Television System Committee
NTWK Network
NUA Normal Unlock Actuator
NUM Numerical
NVM Non-Volatile Memory
NW Nose Wheel
NWI Nose Wheel Imbalance
NWS Nose Wheel Steering
Nz Vertical Load Factor

O

O Open
O Orange
O/C Open Circuit
O/P Output
O2 Oxygen
OAD Overall Aircraft Design
OADMT Overall Aircraft Design Management Team
OAMS Onboard Asynchronous Messaging Service
OANC Onboard Airport Navigation Computer
OANS Onboard Airport Navigation System
OASI Operation and Service Instruction Manual
OASIS Overall Aircraft Systems Integration Strategy
OASIS Online Aerospace Supplier Information System
OAT Outside Air Temperature
OAV On Aircraft Validation
OBCE On-Board Control Equipment
OBCE-WW On-Board Control Equipment - WorldWide
OBOGS On Board Oxygen Generation System
OBRM On Board Replaceable Module
OBS Omni Bearing Selector
OBS Organization Breakdown Structure
OBS Observer
OBSV Observation
OBSVR Observer
OC Oceanic Clearance
OC Open Circuit
OC Overcurrent
OC On Condition
OC Order Card
OC Other Change
OCC Occurrence
OCC Operations Control Center
OCCPD Occupied
OCCPNT Occupant
OCED Operator-Customized ECAM Database
OCL Obstacle Clearance Limit
OCM Outflow Valve Control Module
OCM Out of Control Months
OCS Obstacle Clearance Surface
OCS Overall Customer Satisfaction
OCSM Outflow Valve Control and Sensor Module
OCU Outflow Valve Control Unit
OD Outside Diameter
ODD On Dock Date
ODMS Oil Debris Monitoring System
ODR Operator Difference Requirement
ODR Operator Differences Requirement
ODSM Open world Data Storage Module
ODU Optical Display Unit
OEA Oxygen Enriched Air
OEB Operations Engineering Bulletin
OEB Operations Engineering Bulletin
OEE Overall Equipment Effectiveness
OEI One Engine Inoperative
OEM Original Equipment Manufacturer
OEW Operational Empty Weight
OF Overfrequency
OFAC US government Office of Foreign Assets Control
OFDM Onboard Flight Data Monitoring
OFF/R Off Reset
OFFR Off/Reset
OFLD OFF-LOADING / LOADING
OFMV Oil Flow Management Valve
OFP Operational Flight Path
OFP Operational Flight Program
OFS Outer Fixed Structure
OFST Offset
OFV Outflow Valve
OFW Outer False Work
OG Operational Group
OGV Outlet Guide Vane
OH Opposite Hand
OH Operation Hours
OHC Open Hole Compressive Strength
OHDS OverHeat Detection System
OHDU Overheat Detection Unit
OHP Overhead Panel
OHSC Overhead Stowage Compartment
OHT Open Hole Tensile Strength
OHU Optical Head Unit
OI Operational Interruption
OIS Onboard Information System
OIT Oil Inlet Temperature
OIT Onboard Information Terminal
OIT Operator Information Transmission
OJT On Job Training
OK Correct
OLA Operational Level Agreement
OLB OPS Library Browser
OLBL OPS Library Browser Load
OLE Open Logbook Entries
OLIVER Output Level Intended for Very Excellent Reproduction
OLMS Operational Loads Monitoring System
OLN Operational Limitations Note
OLS Onboard Loadable Software
OLV Operational Liaison Visit
OLW Operational Landing Weight
OLW Out-Located Work
OM Outer Marker
OM Overhaul Manual
OM Operator Manual
OML Outer Mould Line
OMM Overhaul Manual Manufacturer
OMP Operator Maintenance Program
OMS Onboard Maintenance System
OMT Onboard Maintenance Terminal
OMTBF Observed Mean Time between Failure
OMTS On-Board Mobile Telephony System
OMV Overhaul Manual Vendor
ONS Omega Navigation System
OOOI Out of the gate, Off the ground, On the ground, Into the gate
OOT Oil Outlet Temperature
OP Opalescent
OP Operational
OPA Operability Performance Assessment
OPAL Order Processing Automated Line
OPC Operational Program Configuration
OPD Overall Physical Design
OPER Operative/Operation/Operating
OPM Operational Manual
OPMS Oleo Pressure Monitoring System
OPNG Opening
OPP Opposite
OPS Operations
OPS Operational Program Software
OPSOV Over-Pressure Shut Off Valve
OPT Optimum
OPT Optional
OPTL Optional
OPTS Oleo Pressure and Temperature Sensor
OPU Overspeed Protection Unit
OPU Overvoltage Protection Unit
OPV Overpressure Valve
OR Operational Reliability
ORF Orifice
Org Organisation
Org Per Organic Peroxide
ORM Onboard Replaceable Module
ORT Owner Requirement Table
ORT Occurrence Reporting Table
ORVD Overpressure Relief Valve with Dump Function
ORZ Omni Range Zero
OS Operating System
OS Operational Scenario
OS Offer Specification
OSC Oscillator
OSCM Oxygen System Control and Monitoring
OSCU Oxygen System Control Unit
OSD Overall System Design
OSD Operational Suitability Data
OSEP Offer Specification Exception Process
OSF Open world Server Function
OSFC Open world Server Function Cabinet
OSG Overspeed Safety Governor
OSM Operational Supplier Manager
OSS Option Selectable Software
OSS On Site Stock
OSUL Offer Spec Update List
OSW Out of Sequence Work (Outstanding Work)
OT Operations Technology
OTA On Time Availability
OTC Operability Test Card
OTC Operability Test Campaign
OTD On Time Delivery
OTH On Time Handover
OTOQ On Time On Quality
OTOW Operational Take-Off Weight
OTP One Time Password
OTP Optical Tooling Point
OTSSU Outboard Transmission Speed Sensor Unit
OTT Operations Training Transmission
OU Outlet Unit
OUT Outlet
OUT Output
OUTB Outbound
OUTBD Outboard
OUTFLW Outflow
OUTR Outer
OV Over
OVBD Overboard
OVF Over Frequency
OVFL Overflow
OVHD Overhead
OVHT Overheat
OVID Obviously Visible Impact Damage
OVLD Overload
OVPRESS Overpressure
OVRD Override
OVSP Overspeed
OVSTEER Oversteer
OVTEMP Overtemperature
OVV Overvoltage
OW Outer Wing
OW Outstanding Work
OWAG Open World A/C Ground Communication
OWB Outer Wing Box
OWD Open World Diode
OWD Overwing Door
OWE Operating Weight Empty
OWP Over Wing Panel
OWS Open World Shell
OxD Shortform for OAD / OPD / OSD / OVD (Overall Aircraft
Design / Overall Physical Design / Overall Systems Design /
Overall Capability and V&V Design)
OXY Oxygen
Oxy M Oxidizing Material

P

P Purple
P Pressure
P Roll Rate
P Probability
P/B Pushbutton
P/BSW Pushbutton Switch
P/C Printed Circuit
P/C Premium Class
P/L Payload
P/N Part Number
P/P ROM Preprocessor ROM
P/Y Premium Economy Class
P.ALT Profile Altitude
P.CLB Profile Climb
P.DES Profile Descent
P.EPR Profile EPR
P.MACH Profile Mach
P.N1 Profile N1
P.P. Prevention Process
P.SPD Profile Speed
P(-+ OFF) Polarity (minus, plus, off)
P&D Performance & Development
P&PM Project & Program Management
PA Passenger Address
PA Public Address
PAA Primary Airworthiness Authority
PA AMP Passenger Address Amplifier
PAC Production Activity Control
PACC Production Aircraft Clearance Certificate
PACT PAR Applicable Configuration Table
PAD Partner Agreement Document
PAD Post Aircraft Delivery
PAD Proposed Airworthiness Directive
PADS Pneumatic Air Distribution System
PAF Project Administration File
PAL Programmable Array Logic
PAM Product Assurance Manager
PAN Process Assurance Nominee
PAR Precision Approach Radar
PAR Particular Airworthiness Requirement
PAR Particular Risk Analysis
Para. Paragraph
PARAM Parameter
PARK Parking
PART Partner Assessment for Research & Technology
PAS Pitch Attitude Sensor
PASS PLM Airbus Single and Simplified
PAT Product Acceptance Test
PAT Production Assurance Team
PATCC Production Aircraft Test Completion Certificate
PATM Production Aircraft Test Manual
PATS Passenger Air-to-Ground Telephone System
PATS Production Aircraft Test System
PAX Passenger
PAX PAX Announcement Entertainment and Service Multiplex Sys
PB Policy Board
PBD Place Bearing/Distance
PBE Protective Breathing Equipment
PBE Product Based Evaluation
PBIT Power-Up Built-in Test
PBM Power Plant Build-up Manual
PBN Performance Based Navigation
P-BoM Production-Bill of Material
PBR Portal Business Representative
PBS Product Breakdown Structure
PBSELV Park Brake Selector Valve
PBSW Pushbutton Switch
PBV Pack Bay Ventilation
PC Pack Controller
PC Personal Computer
PC Packing Card
PC Production Committee
PCA Portland Cement Association
PCA Positive Control Airspace
PCB Printed Circuit Board
PCCB Process Change Control Board
PCD Performance Compliance Document
PCD Protection and Commutation Device
PCD Procurement Contractual Document
PCDM Primary Contactor Driver Module
PCDS Primary Contactor Driver System
PCE Personal Consumption Expenditures
PCE PreCooler Exchanger
PCF Passenger Cum Freighter
PCM Power Conditioning Module
PCM Pulse Code Modulation
PCM Project Certification Manager
PCM Process Class Method
PCMCIA Personal Computer Memory Card International Association
PCOS Power Cowl Opening System
PCPU Primary COS Power Unit
PCS Propulsion Control System
PCT Probe Compensator Temperature
PCT Percent
PCT Product Cross-reference Table
PCU Passenger Control Unit
PCU Power Control Unit
PCU Power Controller Unit
PD Principle Diagram
PD Pitch Diameter
PDA Personal Digital Assistant
PDB Performance Database
PDC Panel Display Catalog
PDC Procurement Data Card
PDC Procedural Documentation Council
PDCA Plan, Do, Check, Act
PDCS Power Distribution Control System
PDD Process Description Document
PDDC Provisioning Descriptive Data Card
PDF Portable Document Format
PDFU Pedal Damping and Friction Unit
PDI Planning Driven Item
PDI Preservation Description Information
PDL Portable Data Loader
PDLCU Privacy Door Lock Control Unit
PDLS Privacy Door Lock System
PDM Post Delivery Modification Material
PDM Privacy Door Module
PDM Product Data Management
PDMC Power Distribution Maintenance Computer
PDMI Power Distribution Maintenance Interface
PDMIC Power Distribution Maintenance Interface Contactor
PDMMF Power Distribution Monitoring and Maintenance Function
PDO Power Door Opening
PDOS Power Door Opening System
PDP Product Development Plan
PDP Product Development Process
PDP Preliminary Definition Phase
PDR Product Design Review
PDR Preliminary Design Review
PDR Performance & Development Review
PDRC Procurement Data Reference Card
PDrS Pre-Defined repair Solution
PDT Project Development Team
PDT Probe Dual Temperature
PDT Product Delivery Team
PDU Power Drive Unit
PDU Pulled Delivery Unit
PE HP Stage Air Pressure
PEA Program Expenditure Approval
PED Pedestal
PED Portable Electronic Device
PEDMU Primary Electrical Distribution Management Unit
PEEK Polyetheretherketone
PEF Pylon Extension Fairing
PEGS Production Engineering Group System
PEM Performance Engineers Manual
PEP Performance Engineers Program
PEPDC Primary Electrical Power Distribution Center
PERC Percussion
PERF Performance
PERM Permanent
PERS Personal
PERT Program Evaluation and Review Technique
PES Passenger Entertainment System
PES Production Engineering Specification
PESAR Passenger Entertainment System Audio Reproducer
PESC PES Controller
PESMMUX Passenger Entertainment System Main Mux
PF Pilot Flying
PF Power Factor
PFA PERMIT FOR ALTERNATIVE
PFC Primary Flight Control
PFCS Primary Flight Control System
PFD Primary Flight Display
PFDB Power Floor Disconnect Box
PFEP Plan For Every Part
PFEV Power Failure Event
PFF Pre-First Flight
PFFM Pre-First Flight Meeting
PFIN Power Failure Interrupt
PFIS Passenger Flight Information System
PFMEA Process Failure Mode and Effects Analysis
PFQ Preselected Fuel Quantity
PFR Post Flight Report
PFS Pre-Feasibility Study
PFSLSM P&FS Logistic Support Manager
PFTU Pedal Feel and Trim Unit
PG Page
PG Procurement Gate
PG BUS Program Bus
PGL Product Group Level
PH Phase
PHA Preliminary Hazard Analysis
PHC Probe Heat Computer
PHD Protruding Head
PHMU Power Health Monitoring Unit
PHMU Prognostic and Health Monitoring Unit
PI Procedure Turn to an Intercept
PI Product Integrity
PI&CI Program Integration & Continuous Improvement
PIA Peripheral Interface Adapter
PIA Programmable Interface Adapter
PICA Product Integrity Continued Airworthiness
PID Partner Interface Document
PIESD Passenger Information and Entertainment Services Domain
PIF Project Installation File
PIH Pressure Interstage Hydraulic (PW eng)
PIM Programming and Indication Module
PIM Passive InterModulation
PIN Personal Identification Number
PIN PROG Pin Programming
PIPC Power Plant Illustrated Parts Catalog
PIR Pressure Interstage Return
PIREP Pilot Report
PISA Passenger Interface and Supply Adapter
PISR Portal IS Representative
PIU Passenger Information Unit
PIV Particle Image Velocimetry
PIX Picture
PK Pink
PK Package
PKC Performance Key Characteristic
PKI Public Key Infrastructure
PKK Power Plant Kit
PL Plate
PL Plug
PL Party Logistics
PLA Power Light Adapter
PLATF Platform
PLC Powerline Communication
PLC Programmable Logic Controller
PLCRD Placard
PLM Product Lifecycle Management
PLS Pulse
PLSP Point Level Sensor Processor
PLT Pilot
PLU Power Lock Unit
PLU Power Locking Unit
PLYWD Plywood
PM Phase Modulation
PM Project Management
PMA Permanent Magnet Alternator
PMA Parts Manufacturer Approval
PMAT Portable Multipurpose Access Terminal
PMBP Project Management Business Partner
PMC Power Management Control
PMC Power Management Controller
PMC Process Material Control
PMCA Project Management Capability Assessment
PMDB Production Management Data Base
PMG Permanent Magnet Generator
PMI Project Management Institute
PMI Project Management Institute
PMITS Project Management Information Technology System
PMM Personalization Memory Module
PMM Process Maturity Model
PMMM (PM3) Project Management Maturity Measure
PMO Project Management Office
PMO Project Management Operation
PMOR Panel Mounted Oxygen Regulator
PMP Pump
PMP Performance Monitoring Program
PMP Primary Maintenance Process
PMPA Project Manager Performance Assessment
PMR Performance Maintenance Recorder
PMS Process and Material Specification
PMS Performance Management System
PMT Process Management Team
PMU Power Management Unit
PMUX Power Plant Multiplexer
PMUX Propulsion Multiplexer
PN Part Number
PNEP Pre-NAV Engagement Path
PNEU Pneumatic
PNF Pilot Non Flying
PNL Panel
PNP Positive-Negative-Positive
PNR Part Number
PNT Paint / Painting / To Paint
PNTL Pintle
PO Pickoff
PO Purchase Order
PO Process Owner
PO Production Organization
POA Production Organization Approval
POARM POA Review Meeting
POATL POA Team Leader
POB Pressure-Off Brake
POB Power-Off Brake
PoC Proof of Compliance
PoD Point of Delivery
POD Process Owner Delegate
PODD Passenger Owned Devices Domain
PoE Point of Embodiment
P-OFF Power Off
POM Production Organisation Manual
POM Point of Measurement
POM Process Operational Manager
P-ON Power On
POR Point of Regulation
PORT Portable
POS Position
POST Power on Self Test
POT Potentiometer
PoU Point of Use
POXIP Passenger Oxygen Indication Panel
PP Production Panel
PPB Provisioning Parts Breakdown
PPBU Power Plant Build Up
PPC Phosphor Protection Circuit
PPC Production Pace Control
PP CM Primary Panel Certification Manager
PPDC Provisioning Procurement Data Card
PPDES Product Performance Data Exchange Specifications
PPE Proofreading Process Evidence
PPH Policy and Procedures Handbook
PPI Plan Position Indicator
PPIPC Power Plant IPC
PPM Parts per Million
PPM Performance Programs Manual
PPM Pulse Position Modulation
PPM Project Planning Manager
PPM Portfolio Management
PPM Planned Preventative Maintenance
PPOS Present Position
PPS Practical Problem Solving
PPS PolyPhenylene Sulfide
PPU Position Pickoff Unit
PPV Production Process Verification
PQAS Program Quality Assurance System
PQM Process Quality Manager
PQR Product Quality Responsible
PR Pressure
PR Power Ready Relay
PR Progress Meeting
PR Regulated Pressure (downstream of bleed valve)
PR Project Review
PR Particular Risk
PRA Particular Risk Analysis
PRAM Prerecorded Announcement and Music
PRAV PRoducto AVion (Aircraft Product)
PRB Probe
PRB Patent Review Board
PRCSG Processing
PRCSR Processor
PREAMP Preamplifier
PRECOOL Precooler
PRED Prediction
PRED Predictive
PRE-EMPT Pre-emptive
PREP Preparation / Prepare / Prepared
PReq Purchase Request
PREREC Prerecorded
PRESEL Preselection
PRESEL Preselector
PRES POS Present Position
PRESS Pressure
PRESS Pressurization
PRESS Pressurize
PREV Previous
PRF Interrogation Rate
PRF Proof Reading Form
PRGM Program
PRI Priority
PRIM Primary
PRIM PRIMary System
PRIM PRIMary Computer
PRIMES Product Related Information Management Enterprise System
PRL Parallel
PRL Parameter Requested List
PRL/MPL Parameter Recording List/Main Parameter List
PRM Passenger with Reduced Mobility
PRM Program Review Meeting
PRM Progress Review Meeting
PROC Procedure
PROCSR Processor
PROC T Procedure Turn
PROF Profile
PROG Program
PROG Programming
PROG Progress
PROJ Projector
PROM Programmable Read Only Memory
PROS Present Position
PROT Protection
PROW PRoduction Opportunity for Women
PROX Proximity
PRPHL Peripheral
PRR Power Ready Relay
PRS Production Repercussion Sheet
PRS Proof Reading Sheet
PRS Proof Reading Sheet
PRSOV Pressure Regulating and Shut-Off Valve
PRSRZ Pressurize
PRSRZG Pressurizing
PRUT PRoducto UTil (Tool Product)
PRV Pressure Regulating Valve
PS Process Solution
PS Product Structure
PSA Passenger Service Adapter
PSA Physical System Architecture
PSA Pressure Sensitive Adhesive
pSAM Cabin/Cargo Preliminary Space Allocation Model Cabin/Cargo
PSAN Product Safety Analysis Note
PSARI Potential Safety Related Item
PSB Product Safety Board
PSC Passenger Supply Channel
PSC Product Safety Committee
PSCU Proximity Switch Control Unit
PSD Protected Switch Device
PSD Procedural Support Document
PSD Process Support Document
PSDU Power Supply Decoupling Unit
PSE Principal Structural Element
PSI Pounds per Square Inch
PSIC Proximity Sensor Interface Card
PSIU Passenger Service Information Unit
PSNR Positioner
PSP Product Safety Process
PSP Pressure Sensitive Paint
PSPM Product Support Procedures Manual
PSQM Propulsion System Quality Management
PSR Product Safety Representative
PSS Passenger Services System
PSSA Preliminary System** Safety Assessment
PSTN Public Switch Telephone Network
PSU Passenger Service Unit
PSU Power Supply Unit
PSU Passenger Supply Unit
PSUD Passenger Service Unit Decoder
PSV Planned Shop Visit
PT Point
PT Switching Pressure of HP Valve
PTA Pre-Trip Advisory
PTC Positive Temperature Coefficient
PTC Patient Transport Compartment
PT CODE Part Code
PTDC Provisioning Technical Data Card
PTFE Polytetrafluorethylene
PTLU Pedal Travel Limiting Unit
PTM Performance Training Manual
PTP Programming and Test Panel
PTR Push to Reset
PTR Printer
PTS Purchaser Technical Specification
PTS Priority To Study
PTT Push-to-Test
PTT Push-to-Talk
PTU Power Transfer Unit
PTU Power Transformer Unit
PTU Patient Transport Unit
PU Parts Usage
PU Pick Up
PU Processing Unit
PU Panel Unit
PURS Purser
PVC Polyvinyl Chloride
PVD Para Visual Director
PVI Paravisual Indicating
PVIS Passenger Visual Information System
PVR Point Voltage Reference
PVS Process Verification System
PW Pratt & Whitney
PWCU Potable Water Control Unit
PWDB Power Wall Disconnect Box
PWIP Potable Water Indication Panel
PWM Pulse Width Modulator
PWR Power
PWS Potable Water System
PWS Predictive WindShear
PWSP Potable Water Service Panel
PXE Pre-boot eXecution Environment
PYL Pylon
PZ Part Zone

Q

Q Pitch Rate
QA Quality Assurance
QA Quality Authorization
QAC Quality Assurance Concept
QAD Quick-Attach-Detach
QAM Quadrature Amplitude Modulation
QAP Quality Assurance Plan
QAR Quick Access Recorder
QAT Quadruple ARINC Transmitter
QC Quality Control
QC Quick Change
QC Quality Checklist
QCI Quality Continuous Improvement
QD Quick Donning
QDB Quality Directors Board
QEC Quick Engine Change
QEI Quality Event Information
QF Quality Task Force
QFRP Quartz Fiber Reinforced Plastic
QG Quality gates
QIG Quality Improvement Group
QIP Quality Inspection Plan
QIR Quality Improvement Request
QISP Quality In-Service Problem
Qj Probability of Being in Condition j (for structure)
QLB Quality Log Book
QMA Qualitative Maintenance Analysis
QMS Quality Management System
QMS Quality Management System
QMU QAM Modulator Unit
QPL Aerospace Qualified Products Listing
QPL Qualified Parts List
QR Quality Responsible
QRH Quick Reference Handbook
QSOI Quality Standard Operating Instruction
QSPL Qualified Special Processes List
QSR Quality Survey Report
QSR Quarterly Service Reports
QTML Qualified Test Methods List
QTP Qualification Test Program
QTR Qualification Test Report
QTY Quantity
QTZ Quartz

R

R Red
R Right
R Release
R Reset
R Resistor
R Yaw Rate
R/A/G Red/Amber/Green
R/AD Retro/Adaptation Drawing
R/C Rate of Climb
R/D Rate of Descent
R/H Radar Height
R/I Radio/Inertial
R/I Removal/Installation
R/L Reading Light
R/R Rules/Recommendations
R/T Radio Transmit
R/T Receiver Transmitter Unit
R.A. Recommended Actions
R&D Research and Development
R&J Regulations and Justifications
R&R Roles & Responsibilities
R&T Research and Technology
RA Radio Altimeter
RA Radio Altitude
RA Redundancy Assurance
RA Resolution Advisory
RAAS Runway Awareness and Advisory System
RAC Rotor Active Clearance
RAC Rules of the Air and Air Traffic Control
RAC Readiness Assessment Criteria
RACA Ram Air Channel Actuator
RACC Rotor Active Clearance Control
RACON Radar Beacon
RACSB Rotor Active Clearance Start Bleed
RAD Radio
RAD Random Access Device
RAD Roll Anticipation Distance
RADCON Radar Data Converter
RADIUS Remote Authentication Dial-In User Service
RadM Radioactive Material
RADVR Random Access Digital Video Reproducer
RAG Repair Assessment Guidelines
RAI Ram Air Inlet
RAID Redundant Array of Independent Disks
RAIL Runway Alignment Indicator Light System
RAIMS Radio and Audio Integrating Management System
RAL Reichs-Ausschu� f�r Lieferbedingungen (European paint code
prefix)
RAL Rapid Architecture Lab
RALS Recording and Aircraft Locating System
RALTU Reprogrammable Annunciator Light Test Unit
RAM Random Access Memory
RAM Responsibility Assignment Matrix
RAMP Recording Anomalies Maintenance Process
RAO Ram Air Outlet
RAPCON Radar Approach Control
RARO Remote Aerial Refuelling Operation
RAS Repair design Approval Sheet
RAS Remote Access Service
RAS Rien � Signaler
RASC Reservoir Air Supply Cooler
RASCI Responsible, Accountable, Support, Consulted, Informed
RASP Risk Assessment of Structural Parts
RASTI RApid Speech Transmission Index
RAT Ram Air Turbine
RAT Ram Air Temperature
RATC Remote Air Traffic Control
RAX Random Access Transfer Memory
RB Resource BITE
RBA Right Bottom Aft
RBAY Rib Bay / Rib Bays
RBC Resource BITE Configuration
RBCU Remote Braking Control Unit
RBE Requirements Based Engineering
RBF Right Bottom Forward
RBN Radio Beacon
RBP Right Bottom Plug
RBPU Rudder and Brake Pedal Unit
RBS Resource Breakdown Structure
RC Repetitive Chime
RC Recurring Cost
RC Reference Chord
RC Recurring Cost
RCC Remote Charge Converter
RCC Remote Control Center
RCCB Remote Control Circuit Breaker
RCCBM RCCB Module
RCCP Rough Cut Capacity Planning
RCCU Remote Calibration Control Unit
RCD RAAS Configuration DataBase
RCDG Recording
RCDR Recorder
RCF Right Center Fuselage
RCL Recall
RCLM Runway Center Line Marking
RCLS Runway Center Line Light System
RCN Requirement Change Note
RCP Reverse Current Protection
RCPT Receptacle
RCPTN Reception
RCS Radio Communication System
RCSM Resident Customer Support Manager
RCT Rear Center Tank
RCVR Receiver
RCVY Recovery
RCZ Rear Core Zone
RD Retro Drawing
RD Right Display
RD Reqirements Development
RD Requirement Dossier
RDAS Repair Design Approval Sheet
RDC Remote Data Concentrator
RDDMI Radio Dual Distance Magnetic Indicator
RDL Resident Data Loader
RDNG Reading
RDR Request for Design Rework
RDU Receiver Decoder Unit
RDY Ready
RE Requirements Engineering
RE Responsible Engineering
READG Reading
REC Rework Electrical Centre
RECIRC Recirculate
RECIRC Recirculation
RECOG Recognition
RECONF Reconfiguration
RECT Rectifier
RED Reduction
REDCR Reducer
REDUND Redundancy
REF Reference
REF ALIGN Reference Alignment
REFF Retraction, Extension and/or Free Fall test
REFF Root End Fixed Fairing
REFLNG Refueling
REFR Refrigerator
REFUEL Refueling
REG Regulator
REG Register
REGUL Regulation
REIC Reconfigurable ETOPS Isolation Contactor
REIL Runway End Identification Lights
REL Release
REL Reluctance
REP Repository
REP Reporting Point
REPL BY Replaced by
RES Resistance
RET Retract
RET Return
RETR Retract
RETRD Retracted
RETRG Retracting
RETRN Retraction
REV Reverse
REV Revise
REV Revision
REW Recoverable Empty Weight
REX Return of Experience
RF Radio Frequency
RF Reserve Factor
RFA Request for Amendment
RFC Request for Change
RFC Request For Comments
RFE Rear Fuselage and Empennage
RFEV Request from Flight Tests
RFG Request For GSE
RFI Radio Frequency Interference
RFI Request for Information
RFI Resin Film Infusion
RFID Radio Frequency Identification
RFN Rear Fuselage Nacelle
RFP Request for Proposal
RFQ Request For Quotation
RFR Request for Revision
RFR Request For Rework
RFS Reason for Selection
RFS Regardless of Feature Size
RFS Request for Service
RFT Right First Time
RFTI Request For Technical Information
RFU Radio Frequency Unit
RFW Request for Work
RFX Generic term for an RFI, RFTI or RFP
RGAU Rate Gyro and Accelerometer Unit
RGB Red, Green, Blue
RGB Red, Green, Blue
RGLRD Regulated
RGLTG Regulating
RGLTN Regulation
RGTR Register
RH Right Hand
RHEO Rheostat
RHL Rudder Hinge Line
RHS Relative Humidity Sensor
RID Review Item Discrepancy
RISE Re-use, Improve and Share Experience
RIU Recorder Interface Unit
RJB Radio Junction Box
RK Rack
RLA Reverser Lever Angle
RLD Required Landing Distance
RLF Relief
RLG Ring Laser Gyro
RLI Resin Liquid Infusion
R-LMF Right Side Local Maintenance Function
RLS Remote Light Sensor
RLS Right Line Select Key
RLSED Released
RLSELV Right Lock Selector Valve
RLTD Related
RLY Relay
RM Radio Magnetic
RM Requirements Management
RM Responsible Manufacturing
RMA Routing Maturity Assessment
RMCU Remote Magnetic Compensation Unit
RMF Rear Mount Fairing
RMI Radio Magnetic Indicator
RMM Removable Memory Module
RMO Retrofit Modification Offer
RMO Request for Modification Order
RMO Retrofit Modification Order
RMP Radio and Audio Management Panel
RMP Radio Management Panel
RMP Right Middle Plug
RMS Root Mean Square
RMS Reference Manufacturing Shop
RMSG Reference Manufacturing Shop Group
RMT Remote
RMU Radio Management Unit
RNAV Area Navigation
RNG Range
RNI Radio Navigation Indicator
RNLG Reinforced Nose Landing Gear
RNP Required Navigation Performance
RNP-AR Required Navigation Performance Authorization Required
RO Reportable Occurrence
ROA Return on assets
ROA Read Only Area
RODS Read Only Data Service
ROE Return on equity
ROI Return on investment (capital employed)
ROLR Roller
ROLS Remote Oil Level Sensor
ROM Read Only Memory
ROM Risk and Opportunity Management
R-OMS Right Side Onboard Maintenance System
ROP Runway Overrun Protection
ROPS Runway Overrun Prevention System
Ro-Ro Handling Roll On Roll Out Handling
ROT Runway Occupancy Time
ROTG Rotating
ROW Runway end Overrun Warning
RP Representative Platform
RPB Rear Pressure Bulkhead
RPCU Residual Pressure Control Unit
RPDR Reproducer
RPF Reporting Processing Function
RPG Report Program General
RPK Revenue Passenger Kilometer
RPLNT Repellent
RPSA Rotating Pressure Sensing Assembly
RPTG Repeating
RPTG Reporting
RPTR Repeater
RPU Receiver Processor Unit
RQ Recommended Quantity
RQ Responsible Quality
RQRD Required
RQS ReQuest Sheet
RR Rolls Royce
RR Low or Medium Range Frequency Radio Range Station
RR Rudder Rib
RRU Recorder Release Unit
RS Rear Spar
RS Repeating Stroke
RSA Request for Service Allowance
RSB Rotary Shaft Balances
RSDP Reference Structure Design Principle
RSE Recommendations for Safety Enhancement
RSM Repair Station Manual
RSM Removable SIM Module
RSP Responder Beacon
RSP Risk Sharing Partner
RSPL Recommended Spare Parts List
RSR Route Surveillance Radar
RSS Receiver Surveillance System
RSS Root Sum Square
RSSELV Right Steering Selector Valve
RST Reset
RSU Raster Shading Unit
RSV Reserve
RSV Right Servo metering Valve
RSVR Reservoir
RT Risk Time
RTA Receiver Transmitter ARINC
RTA Required Time of Arrival
RTA Right Top Aft
RTBC Refuel and Towing on Battery Contactor
RTC Real Time Clock
RTC Research & Technology Council
RTC Restricted Type Certificate
RTC Return To Cabin
RTCA Radio Technical Commission for Aeronautics
RTDM Research & Technology Document Management
RTE Route
RTE Repair Technical Engineer
RTF Radio Telephony
RTF Rich Text Format
RTF Requirement for Test Facilities
RTF Record Tracking File
RTF Right Top Forward
RTG Rating
RTG Research & Technology Group
RTI Repeat Test Instruction
RTK Revenue Tonne Kilom�tre
RTL Rudder Travel Limiting
RTLU Rudder Travel Limiting Unit
RTM Real Time Monitoring
RTM Resin Transfer Moulding
RTN Return
RTNC Refuel and Towing on Normal Contactor
RTNR Retainer
RTO Rejected TakeOff
RTO Runway Turn Off
RTOLW Regulatory TakeOff and Landing Weight
RTOW Regulatory TakeOff Weight
RTP Right Top Plug
RTP Release to Production
RTR Router
RTRSW Rotary Switch
RTRY Rotary
RTS Return to Seat
RTT Return To Tank
RTU Radar Transceiver Unit
RTU Rate of Turn Unit
RUD Rudder
RVCP Remote Video Control Panel
RVDT Rotary Variable Differential Transducer
RVG Residual Value Guarantee
RVI Retained Validation Item
RVR Runway Visual Range
RVS Reverse
RVSM Reduced Vertical Separation Minimum
RVSN Reversion
RVT Rotary Variable Transformer
RVT Rivet
RW Ramp Weight
RW Right Wing
RWDS Rearwards
RWK Rework
RWY Runway
RX Receive
RZ Return to Zero

S

S Minimum Slat Retract Speed (EFIS)
S South
S Slats
S/C Step Climb
S/D Step Descent
S/H Sample and Hold
S/MECH Shortening Mechanism
S/N Serial Number
S/R Safety / Reliability
S/W Software
S&OP Sales & Operations Planning
SA Stress Analysis
SA Single Aisle
SAA Sulphuric Acid Anodizing
SaaS Software as a Service
SAC Single Annular Combustor
SACU Stand Alone Compensator Unit
SACU Semi-Automatic Control Unit
SAD Stress Analysis Data
SAD Spares Advance Data
SADD Statement of Approved Design Data
SADF Spares Advance Data Form
SAE Society of Automotive Engineers
SAF Safety
SAFD Safetied
Safety PN Safety Professional Network
SAGB Step Aside GearBox
SAID Single Aisle Incremental Development
SAL System Address Label
SAL Security Assurance Level
SALS Short Approach Light System
SALSA Spot Array Light Supply Adapter
SAM Stress Analysis Manual
SAM Space Allocation Model
SAM Specific Architecture MockUp
SAM Space Allocation Mock-up
SAN Software Assurance Nominee
SAOHE Surface Air/Oil Heat Exchanger
SAP Systems, Applications, & Products for data processing
SAP Safety Action Plan
SAP BW SAP Business information Warehouse
SAP ITS SAP Internet Transaction Server
SAPL Supplier Action Plan Letter
SAR Smart ACMS Recorder
SAREF Safety Requirements for Future
SARI Safety Related Item
SAS Static Strength Approval Sheet
SAS Software Accomplishment Summary
SAS Secondary Air System
SAT Static Air Temperature
SATCOM Satellite Communication
SAV Starter Air Valve
SB Service Bulletin
SBB Swift Broadband
SBCOMP Service Bulletin COMPuterization
SBD Single Blade Door
SBD Short Burst Data
SBDB Service Bulletin Data Base
SBEW Standard Basic Empty Weight
SBI Service Bulletin Index
SBIT Service Bulletin Information Telex
SBL Symbol
SBR Service Business Representative
SBRS Service Bulletin Release Sheet
SBS Service Bulletin Effectivity Schedule
SBS Safety Barrier Strap
SC Single Chime
SC Scale
SC Source Code
SC Steering Committee
SC Security Committee
SC Special Condition
SCAV Scavenge
SCCS Sub-Contract Control Sheet
SCE Source
SCE Showing Compliance Engineer
SCFM Standard Cubic Feet Minute of Gaseous Airflow
SCG System Configuration Guide
SCH Schematic
SCI Secure Communication Interface
SCI Supply Chain Integrator
SCL Software Configuration Library
SCL Software Control Library
SCM SDU Configuration Module
SCM Supplier Configuration Manager
SCN Specification Change Notice
SCO Section Control
SCO Section Controller
SCoRS Supplier Commercial Repercussion Sheet
SCP Supplier Change Proposal
SCR Screw
SCR Specification Change Request
SCR Supplier Control Reviews
SCS Supplemental Cooling System
SCS Single Channel Simplex
SCS Steering Control System
SCS Supportability Candidate Sheet
SCS Supplier Controlled Software
SCS Supplier Compliance Specialist
SCS Sliding Carpet System
SCU Supplemental Control Unit
SCU System Control Unit
SCUP Scupper
SD System Display
SD System Drain
SD Specification Dossier
SD&AHWG Systems Design & Analysis Harmonisation Working Group
SDA Smart Data Analytics
SDAC System Data Acquisition Concentrator
SDAC System Data Analog Converter
SDAI STEP Data Access Interface
SDAU Special Data Acquisition Unit
SDB Signals Data Base
SDB Source Data Base
SDCU Smoke Detection Control Unit
SDD System Description Document
SDDF Source Data Discrepancy Form
SDDR Structure Design Document Repository
SDF Smoke Detection Function
SDG Spares Data Guide
SDGP Source Data Gathering process
SDI Source Data Identifier
SDI Source/Destination Identifier
SDL Simple Data Loader
SDM Smart Diode Module
SDM Safety Data Management
SDN System Description Note
SDOF Single Degree of Freedom
SDP Steering Disconnect Panel
sDPL supplier Deployment Project Leader
SDR Sealed Data Route
SDS Smoke Detection System
SDS Software Definition Summary
SDS Standard Data Sheet
SDTM Structure Description Training Manual
SDU Satellite Data Unit
SDU Seat Display Unit
SDW Specific Design Work
SE Simplified English
SE Section
SEAL Sealing
SEB Seat Electronic Box
SEB Service Evaluation Bulletin
SEC Secondary
SEC SECondary Computer
SEC Securities and Exchange Commission
SEC Spoiler Elevator Computer
SECI Software life cycle Environment Configuration Index
SECT Section
SEG Segment
SEI Sustained Engine Imbalance
SEIL Small Electrical Item List
SEL Select
SEL Selected
SEL Selection
SEL Selector
SELCAL Selective Calling
SELV Selector Valve
SEMR System Equipment Maintenance Requirements
SENS Sensitivity
SEP Separator
SEP Systems Evolution Plan
SEPDC Secondary Electrical Power Distribution Center
SEQ Sequence
SEQ Sequential
SER Serial
SER Serial Number
SER/PRL Serial to Parallel
SERNO Serial Number
SES Support Equipment Summary
SES Supplier Equipment Specification
SES Supportability Experience Sheet
SET Setting
SF Spot Face
SFAR Special Federal Aviation Regulation
SFC Specific Fuel Consumption
SFCC Slat Flap Control Computer
SFCC Sideways Facing Crew Cockpit
SFCC Sideways Facing Crew Configuration
SFE Seller Furnished Equipment
SFE Supplier Furnished Equipment
SFE CODD Seller Furnished Equipment Contractual On Dock Date
SFI Synthetic Flight Instructor
SFM Safety Follow-up Meeting
SFMEA System Failure Mode and Effects Analysis
SFPI Slats/Flaps Position Indicator
SFS Shared Folder System
SG Stroke Generator
SG Starter Generator
SGCU Smart Galley Control Unit
SGCU Starter Generator Control Unit
SGHTNG RD Sighting Rods / Sighting Rod
SGML Standard Generalized Markup Language
SGP Stroke Generator Processor
SGR Software Ground Repository
SGSC Sheddable Ground Servicing Contactor
SGU Symbol Generator Unit
SH Sheet
SH Security Handbook
SH ABS Shock Absorber
SHADE Schedules Airbus Data Exchange
SHAPE Shaping Airbus Process Excellence or Simplify-Harmonize-
Align-Perform-Enable
SHDBL Sheddable
SHED Sheddable
SHED Shedding
SHKR Shaker
SHLD Shield
SHLD Shielding
SHM Structural Health Monitoring
SHN Scratch Hardness Number
SHPNG Shipping
SHRD Shroud
SHR PN Shear Pin
SHT Short
SI Slip Indicator
SI Systeme International
SI Special Instruction
SIAP Structural Inspection Adjustment Program
SIAS Spares Interchangeability Approval Sheet
SIAS Spare Interchangeability Approval Sheet
SIB Security Information Base
SIB Seat Interface Box
SIB Safety Information Bulletin
SIB System Integration Bench
SIC System Isolation Contactor
SIC System Identity Card
SICB Special Instruction Control Board
SICC Special Instruction Committee
SICU System Interface Control Unit
SID Standard Instrument Departure
SID System Interface Definition
SID System Interface Document
SIDP System Installation Design Principles
SIE Surface Industrielle Etendue
SIF Selective Identification Feature
SIF Spares Information File
SIF Software Installation File
SIG Signal
SIH Section Installed Harness
SIL Speech Interference Level
SIL Service Information Letter
SIL Software Information Library
SIL Service Information Letter
SIM Simulation
SIM Single Integrated Manifold
SIM Subscriber Identity Module
SIN Sine
SIP System Integration Bench
SIR Service Identification Request
SIRD System Installation Requirement Dossier
SIRU Secure Interface Router Unit
SIS Standalone Identification System
SIS Spares Investment Study
SISD System Installation Specification Dossier
SISEN Significant In-Service Event Notification
SISR Service IS Representative
SITR System Installation Technical Reference
SIU Server Interface Unit
SIV Standard Item Variations
SJC Standard Job Card
SKT Socket
SL Sea Level
SL Service Letter
SLA Spot Light Adapter
SLA Service Level Agreement
SL ALI Safe Life Airworthiness Limitation Items
SLB Standard Line Balancing
SLC Starter Line Contactor
SLCA Streamlined Life Cycle Assessment
SLD Slide
SLD Sliding
SLI System Level Integration
SLL Shelf Life Limitation
SLM Service Level Management
SLM Service Line Manager
SLMC Service Life Limits and Maintenance Checks
SLP Space Limited Payload
SLP Single Load Path
SLR Service Level Requirement
SLS Side Lobe Suppression
SLS Shop Loadable Software
SLS Slide Lever Switch
SLT Slat
SLV Sleeve
SLV Stipulated loss value
SM Standards Manual
SM3 Standard Manual Part 3
SMA Single Motor Actuator
SMART Standard Modular Avionics Repair and Test
SMC System Manager Controller
SMCR&T Senior Manager Center Research & Technology
SME Subject Matter Expert
SMEL Seat-Mounted Emergency Light
SMIB Security Management Information Base
SMK Smoke
SMKG Smoking
SML SB Modification Crossreference List
SMM System Management Module
SMM Senior Management Meeting
SMO Stabilized Master Oscillator
SMP Safety Manufacturing Panel
SMQM Software Method and Quality Manager
SMR Sealed Manufacturing Route
SMS Safety Management System
SMS Source Management System
SN Serial Number
SNGL Single
SNIF Sensitivity for Normal Interface
SNMP Simple Network Management Protocol
SNS Standard Numbering System
SNSG Sensing
SNSR Sensor
SO Shutoff
SO2 Sulphur Dioxide
SoC Statement of Conformity
SOI Standard Operating Instruction
SOL Solenoid
SOM Supply Chain & Quality Operations Manager
SOP Standard Operating Procedure
SOR Statement Of Requirements
SOS Sell or Scrap
SOTM System Operation Training Manual
SOV Shut-Off Valve
SOW Statement Of Work
SP Sampling
SP Space
SP Security Panel
SPAD Scratchpad
SPAN Supplier and Partners Airbus Network
SPASE Single Point Audio System Earth
SPATIAL System for Acquisition and Processing of ARINC and Logic
SPB Seat Power Box
SPC Spare Parts Classification
SPC Special Purpose Company
SPC Smart PCMCIA Card
SPCA (Customer) Support Process Capability Assessment
SP CM Support Panel Certification Manager
SPD Speed
SPD Single Product Definition
SPD/M Speed-Mach
SPDB Secondary Power Distribution Box
SPE Seller Purchased Equipment
SPE Supplier Purchased Equipment
SPEC Specification
SPF Specific Pathogen Free
SPF SuperPlastic Forming
SPFK Specific
SPI Schedule Performance Index
SPKR Speaker
SPL Sound Pressure Level
SPLC Splice
SPLR Spoiler
SPLY Supply
SPM Signal Processing Module
SPM Standard Practices Manual
SPMC Service Process Material Control
SPMG Shorted Permanent Magnet Generator
SPOARM Single POA Review Meeting
SPOP Service Process Operation Procedure
SPP Software Pin Programming
SPP Strategic Planning Process
SPP-BA SPP Broadcasting Application
SPPF Software Pin Programming Function
SPPU Station Position Pick-off Unit
SPR Service and Performance Report
SPR Spar
SPRDR Spreader
SPRINT Systema de Production Integrado
SPRT Support
SPS Service Process Solution
SPS Seat Power Supply
SPS/B Superseded by
SPSA Supplier Product Support Agreement
SPSS Seat Power Supply System
SPST Single Pole Single Throw
SPU Starter Power Unit
SQ Squelch
SQCDP Safety Quality Cost Delivery People
SQIP Supply Quality Improvement Programs
SQW Square Wave
SR Senior
SR Safety Recommendations
SRA Safety Risk Analysis
SRC Strategic Research Center
SRD Shorted Rotating Diode
SRD System Requirement Document
SRDU Standard Repair for Daily Use
SRE Surveillance Radar Element of GCA
SRF Servicing and aircraft condition parameters Reporting Function
SRI aircraft Structural Repair Identification
SRKL Structural Repair Kit List
SRKM Structural Repair Kit Manual
SRM Structural Repair Manual
SRM Supplier Relationship Managers
SRM Safety Review Meeting
SRP Safety / Reliability Plan
SRPS Safe Redundant Power Supply
SRPSU Slide Release Power Supply Unit
SRPU Safe Redundant Power Unit
SRS Speed Reference System
SRU Shop Replaceable Unit
SS Sky/Shading
SSA Side Slip Angle
SSA System Safety Assessment
SSA System Safety Analysis
SSAD Sensitive Security Airworthiness Directive
SSALS Simplified Short Approach Light System
SSALSR Simplified Short Approach Light System Runway Alignment
SSB Single Side Band
SSBFE Seller Supplied Buyer Furnished Equipment
SSC Single Stroke Chime
SSC Supplier Support Conditions
SSCI Structure, System and Cabin Installation (Manager)
SSCVR Solid State Cockpit Voice Recorder
SSD Structure Significant Dossier
SSEC Static Source Error Correction
SSFDR Solid State Flight Data Recorder
SSG Single Stroke Gong
SSI Structural Significant Item
SSI System and Structure Installation
SSID Supplemental Structural Inspection Document
SSID Service Set Identifier
SSIP Supplemental Structure Inspection Program
SSL Standard Selection List
SSM Sign Status Matrix
SSM Solid State Memory
SSM Strategic Supplier Manager
SSMM Solid State Mass Memory
SSO Single Sign-On
SSP Significant In-Service Problems
SSP System Specification
SSP System Signal Processor
SSP State Safety Program
SSPC Solid State Power Controller
SSR Secondary Surveillance Radar
SSSV Solid State Stored Voice
SSTDU Side Stick Transducer and Damper Unit
SSTU Side Stick Transducer Unit
SSU Side Stick Unit
ST Station
STA Station
STA Straight-in-Approach
STAB Stabilizer
STAR Standard Terminal Arrival Route
STARTG Starting
STAT Static
STBY Standby
STC Supplemental Type Certificate
STCS STC holder Controlled Software
STD Standard
STD Standard Data Sheet
STDP Standard Parts
STDY Steady
STELLA STair Electrical Light Load Adapter
STEP Standard for the Exchange of Product model data
STF Specification for Test Facility
STG Stage
STGR Stringer
STID Specific Technical Instructions for Dataloading
STIF Stiffener
STL Steel
STL Stereolithography
STL System Torque Limiter
STL WARN Stall Warning
STO Sustained Torsional Oscillation
STOM System Operation Training Manual
STR Stringer
STR Structure
STR Same Type Rating
STRG Steering
STRK Stroke
STRL Structural
STRM Secure open and Trip Resident Memory
STRM Short Term Review Meeting
STRUCT Structure
STS Status
STS Alignment Status
STS Spares Technical Specification
STV Standard Time Value
STVP Standard Vendor Part
STWG Stowage
STWG Short-Term Working Group
STYPPLE Sensitive Typical Phone Power Level
SU SUBSCRIBER
SUBMUX Submultiplexer
SUCNL ACTN Successional Action
SUCT Suction
SUM Summing
SUP Suspected Unapproved Part
SUPPL Supplementary
SUPPR Suppressor
SUPSD BY Superseded by
SURF Surface
SURV Surveillance
SV Servovalve
SV Schedule Variance
SVA Stator Vane Actuator
SVCE Service
SVMTR Servomotor
SVO Servo
SW Switch
SW Software
SWG Strategic Working Group
SWOT Strenghts, Weaknesses, Opportunities, Threaths
SWRD System Wiring Requirement Dossier
SWRD-A System Wiring Requirements Dossier maturity A
SWRD-B System Wiring Requirements Dossier maturity B
SWRD-C System Wiring Requirements Dossier maturity C
SWTG Switching
SWY Stopway
SyA Systems Architect
SyCDR System Critical Design Review
SyCID System Configuration Index Document
SyCMP System Configuration Management Plan
SyCP System Certification Plan
SyCR System Certification Review
SyD System Designer
SyDAL System Development Assurance Level
SyDAS System Development Accomplishment Summary
SyDPAP System Development and Process Assurance Plan
SyIHA System Intrinsic Hazard Analysis
SYM Symmetry
SyMP System Management Plan
SYNC Synchro
SYNC Synchronize
SYN REF Synchro Reference
SYNTHR Synthetizer
SYNTHR Synthesizer
SyPAN System Process Assurance Nominee
SYS System
SySRP System Safety and Reliability Plan
SyVVP System V&V Plan
SZA Standard Zonal Analysis

T

T Trim
T Turn
T True
T Thickness
T/C Top of Climb
T/C Type Certificate
T/D Top of Descent
T/F Track of a Fixed Waypoint
T/R Thrust Reverser
T/TISS Traffic and Terrain Integrated Surveillance System
T.O TakeOff
T&T Track & Trace
T2C HP Compressor Inlet Temperature
T2CAS Traffic and Terrain Collision Avoidance System
T54 Low Pressure Turbine Inlet Temperature
TA Traffic Advisory
TA Twin Aisle
TA Technical Adaptation
TAB Tabulation and Interpolation Program
TAB Test and Bite Panel
TAC Taxiing Aid Camera
TAC Technical Acceptance Completion
TACAN Tactical Air Navigation
TACH Tachometer
TACKV Trim Air Check Valve
TACS Taxiing Aid Camera System
TACT Tactical
TACT Test Activity Control Team
TADB Terrain/Airport DataBase
TADD Trim Air Drive Device
TAKSY Technisch Administratives Konstruktionssytem
TaMED Tank Modelling on Every Desk
TAP Transient Acoustic Propagation
TAP Technology Acquisition Portfolio
TAPRV Trim Air Pressure Regulating Valve
TAPS Trim Air Pressure Sensor
TAR Terminal Area Surveillance Radar
TAR Tool Action Request
TAS True Airspeed
TAS Technical Approval Sheet
TASE Training Area of Special Emphasis
TASE Training Areas of Special Emphasis
TASOV Trim Air Shut Off Valve
TAT Total Air Temperature
TAV Trim Air Valve
TAWS Terrain Awareness and Warning System
TB Terminal Block
TBC To Be Confirmed
TBD To be Determined
TBM Type Board Meeting
TBO Time Between Overhauls
TBSV Time Between Scheduled Visits
TBU Time Base Unit
TBV Transient Bleed Valve
TC HP Turbine Case Pressure
TC Theoretical Contour
TC Thermocouple
TC Takeoff Charts
TC Type Certificate
TCA Throttle Control Assy
TCAC Total Cost At Completion
TCAC Total Cost of Aircraft
TCAF Turbine Cooling Air Front
TCAM Turbine Cooling Air Middle
TCAP TCAS Resolution Advisory Prevention
TCAR Turbine Cooling Air Rear
TCAS Traffic Alert and Collision Avoidance System
TCC Thrust Control Computer
TCC Turbine Case Cooling
TCC Turbine Clearance Control
TCC Technology Capability Center
TCCA Transport Canada Civil Aviation
TCCS Thrust Control Computer System
TCDS Type Certificate Data Sheet
TCDSN Type Certification Data Sheet Noise
TCFN Two's Complement Fractional Notation
TCG Time Corrected Gain
TCI Time Controlled Item
TCIU Telephone Communication Interface Unit
TCM Thrust Control Malfunction
TCM Technical Coordination Meeting
TCM Technical Change Manager
TCM Type Certification Manager
TCP Takeoff Charts Computation Program
TCP Transmission Control Protocol
TCQ Time, Cost and Quality
TCQP Time, Cost, Quality, and Performance
TCQPM Time, Cost, Quality, Performance, and Maturity
TCS Temperature Control System
TCS TC holder controlled Software
TCSB Transformer Coupled Serial Bus
TCT Transport Control Tower
TCU Throttle Control Unit
TCU Transport Cargo Unit
TCV Temperature Control Valve
TD Technical Disposition
TD Technical Dossier
TD Time Delay
TD Technical Deputy
TD Technical Data
TD Type Design
TDB Terrain DataBase
TDC Time Delay Closing
TDC Top Dead Center
TDCA Technical Delegation Capability Assessment
TDCR Type Design Change Request
TDD Technical Design Directive
TDD Technical Data Download
TDDO Tooling Definition Dossier
TDF Tool Definition Form
TDO Time Delay Opening
TDP Touchdown Point
TDS Technical Data Sheet
TDSC Technical Data Steering Committee
TDU Technical Description Unit
TDU Time Display Unit
TDY Temporary Duty
TDZL Touchdown Zone Lights
TE HP Stage Air Temperature
TE Trailing Edge
TEC Turbine Exhaust Case
TED Tool and Equipment Drawing
TEDB Tool and Equipment Data Bank
TEFO Total Engine Flame Out
TEG Technology Exchange Group
TEI Tool and Equipment Index
TEL Telephone
TELECOM Telecommunications
TEM Tool and Equipment Manual
TEMP Temperature
TEMP Test and Evaluation Master Plan
TEO Engine Oil Temperature
TER Trailing Edge Rib
TER Technical Event Report
TER Test Event Report
TERM Termination
TEST SIG Test Signal
TF Task Force
TF Tuning File
TFE Test Flight Engineer
TFF Technical Flight Familiarization
TFN Through Flow Nacelle
TFO Transport Front Officer
TFR Transfer
TFR Trouble and Failure Report
TFSV Turbo Fan Supply Valve
TFTS Terrestrial Flight Telephone System
TFU Technical Follow-up
TG Task Group
TGB Transfer Gearbox
TGCU Terminal GPRS / UMTS Client Unit
TGL Touch-and-Go Landing
TGT Target
TGT Turbine Gas Temperature
THD Thread
THD Total Harmonic Distortion
THERAP Therapeutic
THMS Thermistor
THO Tooling Hand Over
THR Thrust
THRM Thermal
THRMST Thermostat
THROT Throttle
THROT PUSH Throttle Pusher
THS Trimmable Horizontal Stabilizer
Ti Titanium
TI Technical Information
TI Technical Instruction
TI Track to an Interrupt
TIA Type Inspection Authorization
TIC Turbine Impingement Cooling
TICC Technical Information and Communication Committee
TID Technical Impact Difference
TID Technical Information Document
TIE Technology Innovation Evolution
TIFF Tagged Information File Format
TIP Tactical Implementation Plan
TIP Technology Integration Platform
TIP Technical Implementation Procedure
TIR Technical Incident Report
TIR Type Inspection Report
TIT Turbine Inlet Temperature
TIU Terminal Interface Unit
TIV Temperature Isolation Valve
TK Tank
TK Ground Track Angle
TKE Track Angle Error
TKE Track Error
TL Tooling List
TL Transmittal Letter
TLA Throttle Lever Angle
TLAR Top Level Aircraft Requirement
TLB Technical Log Book
TLC Takeoff and Landing Chart Computation Program
TLC TR Line Contactor
TLCS Trolley Lift & Conveyance System
TLFALRD Top Level Final Assembly Line Requirement Document
TLMC Time Limits and Maintenance Checks
TLR Top Level Requirement
TLS Transcowl Locking System
TLS Trolley Lift System
TLS Toulouse
TLSRD Top Level System Requirement Document
TLU Travel Limitation Unit
TLV Tertiary Lock Valve
TM Torque Motor
TM Transportability Manual
TM Terminal Module
TMA Terminal Control Area
TMA Twin Motor Actuator
TMC Target Must Cost
TMG Timing
TMLB Technical and Maintenance LogBook
TMR Timer
TMS Transport Management System
TN Technical Note
TNSN Tension / Tensioned / Tensioning/ To Tension
To Mean Flight Time
TO Takeoff
TO Transfer Order
TO/APPR Takeoff/Approach
TOA Training Organization Approval
TOAC Table of Aircraft and Components
TOC Table of Contents
TOD Takeoff Distance
TOGA Takeoff/Go Around
TOGW Takeoff Gross Weight
TOIL Toilet
TOL Tolerance
ToO Time of Occurence
TOP Technology Offensive Program
TOP Training and flight Operations Panel
TOPA TakeOff Performance Application
TOR Takeoff Run
TOS TakeOff Securing
TOT Total
TOT Transfer of Title
TOW Takeoff Weight
TOW Towing
TP Test Point
TP Top Plug
TP Technology Product
TP Test Pilot
T-P Turn Point
TPA Technical Publications Agreement
TPCI Technical Publications Combined Index
TPG Technical Publications Guide
TPGG Technical Publications General Guide
TPIB Technical Publications Illustration Bank
TPIC Tire Pressure Indicating Computer
TPIS Tire Pressure Indicating System
TPL Technology Product Leader
TPM Total Productive Maintenance
TPMM Technical Publications Management Meeting
TPO Top Project Objectives
TPOP Technical Publications Output Planning
TPPP Technical Publications Production Planning
TPR Turbofan Power Ratio
TPR Top Project Requirements
TPRD Technical Publications Reference Document
TPS Temporary Protection System
TPS Turbo Propulsion Simulation
TPSL Top Product Structure Layout
TPSP Third Party Software Provider
TPU Terminal Processor Unit
TPWD Technical Publications Work Sharing Document
TPX Experimental Test Pilot
TQM Total Quality Management
TQWP Total Quality of Work Packages
TR Temporary Revision
TR Thrust Reverser
TR Transformer Rectifier
TR Transistor
TR Regulated Temperature (Downstream of precooler)
TR Temporary Revision
TR Truss
TR Turn Radius
TR Transport Request
T-R Transmitter-Receiver
TRA Throttle Resolver Angle
TRA Test Report Analysis
TRACON Terminal Radar Control
TRAM TRacking and Activity Management
TRANS Transition
TRANSF Transfer
TRANSLG Translating
TRAS Thrust Reverser Actuation System
TRC Thrust Rating Computer
TRDV Thrust Reverser Directional Valve
TreND Tree Navigated DMU
TRF Turbine Rear Frame
TRGT Target
TRI Type Rating Instructor
TRIG Trigger
TRK Track
TRL Technology Readiness Level
TRLY Trolley
TROPO Tropopause
TRP Thrust Rating Panel
TRPU Thrust Reverser Power Unit
TRPV Thrust Reverser Pressurizing Valve
TRQE Torque
TRQR Torquer
TRS Technical Repercussion Sheet
TRT Turn Round Time
TRTO Type Rating Training Organisation
TRU Transformer Rectifier Unit
TRU True
TRV Travel
TS Trim Sheet
TS Technique Sheet
TS TCU Sensor
TSA Throttle Sensor Angle
TSA Technical Service Agreement
TSA Tartaric Sulphuric Anodizing
TSAS Temperature Secondary Air System
TSD Trouble Shooting Data
TSDB Trouble Shooting Data Base
TSDF Task Structured Data File
TSE Trouble Shooting Extract
TSF Trouble Shooting Function
TSFC Thrust Specific Fuel Consumption
TSH Trouble Shooting Handbook
TSI Time Since Installation
TSIS Traveler Safety Information Sheet
TSLSV Time Since Last Shop Visit
TSM Trouble Shooting Manual
TSN Tianjin
TSO Technical Standard Orders (FAA)
TSO Technical Standard Order
TSO Time Since Overhaul
TSP Tank Signalling Processor
TSPA Tank Signal Processor A
TSPB Tank Signal Processor B
TST Test
TSU Torque Sensor Unit
TT Trim Tank
TT Switching Temperature of HP Valve
TT Total Time
TTA Time to Answer
TTG Time to Go
TTGA Time To Get an Answer
TTGF Time To Get a Fix
TTL Transistor Transistor Logic
TTL Task Team Leader
TTOL Taxi, Takeoff and Landing
TTP Time Triggered Protocol bus
TTR Technical Trouble Report
TTS Trim Tank System
TU Tapping Unit
TUCD Thermostat Unit Control Device
TURB Turbine
TURB Turbulence
TURB Turbulent
TV Television
TVBC Turbine Vane and Blade Cooling
TVC Turbine Vane Cooling
TVOR Short Range VOR
TVOR Very High Frequency Terminal Omnirange Station
TW Twisted
TWDC Tank Wall Data Concentrator
TWE TAKSY Web Engine
TWLU Terminal Wireless LAN Unit
TWR Tower
TWY Taxiway
TX Transmission (TCAS to Transponder)
TX Transmit
TxP Shortform for TAP /TIP / TOP (Technology Acquisition
Portfolio / Technology Integration Platform / Technology
Offensive Programme)
TXW Taxi Weight
TYP Typical
TYPPLE Typical Phone Power Level

U

� Pitch Attitude
U/FLOOR Underfloor
U/S Unserviceable
UAC Upper Area Control Centre
UADF User Application Definition File
UART Universal Asynchronous Receiver Transmitter
UAS Universal Analysis System
UAT User Acceptance Test
UC Use Case
UCS User Certifiable Software
UD Upper Deck
UD Document Unit ("Unit� Documentaire")
UD Uni-Directional Tape
UDC Upper Deck Cargo
UDCC Upper Deck Cargo Compartment
UDCD Upper Deck Cargo Door
UDF User Defined Feature
UDL Unit Detail Listing
UDP User Datagram Protocol
UEA User Entity Administrator
UEB Underseat Electronic Box
UEFI Unified Extensible Firmware Interface
UERF Uncontained Engine Rotor Failure
UF Underfrequency
UHF Ultra High Frequency
UICDL User Interface Configuration Download List
ULA Universal Light Adapter
ULA M Universal Light Adapter Module
ULB Underwater Locator Beacon
ULD Unit Load Device
ULD Underwater Locating Device
ULLI Understep LED Light
ULM Ultra Low Maintenance
UMS User Modifiable Software
UMTS Universal Mobile Telecommunications System
UNBAL Unbalance
UNBAL Unbalanced
UNCPLG Uncoupling
UNCRCTD Uncorrected
UND Under
UNDERPRESS Underpressure
UNFCCC United Nation Framework Convention on Climate Change
UNIV Universal
UNLK Unlock
UNLKD Unlocked
UNSD Unused
UP Unified Planning
UP-3P Unified Planning - Portfolio, Project & Programme
Management
UP-Dev Unified Planning for Development
UPLK Uplock
UPLKD Uplocked
UPPR Upper
UPR Upper
UP-Series Unified Planning for Series
UR Utilization Rate
URL Uniform Resource Locator
US Under Speed
US United States
US Upstream
USB Universal Serial Bus
USB Upper Sideband
UTA Upper Control Area
UTC Universal Time Coordinated
UUT Unit Under Test
UV Ultra-Violet
UV Under Voltage
UVEROM Ultra Violet Erasable Read Only Memory
UWBS Universal Wireless Backbone System
UWF Under Wing Fitting
UWY Upper Airway

V

V Valve
V Violet
V/L VOR/LOC
V/L VOR/Localizer
V/S Vertical Speed
V&V Validation & Verification
V&V Verification & Validation
VAC Voltage Alternating Current
VACBI Video and Computer-Based Instruction
VACU Vacuum
VAFN Variable Area Fan Nozzle
VAI Validation Action Item
VALDN Validation
VAP Visual Approach Procedure
VAR Variable
VAR Variation
VAR Visual-Aural Radio Range
VAR LEV HTY Variable Lever Healthy
VASIS Visual Approach Slope Indicator System
VB Virtual Bundle
VBV Variable Bleed Valve
VC Ventilation Controller
VC Variable Camber
VC Virtual Connector
VCC Video Control Center
VCI Video Control Insert
VCM Video Camera Module
VCO Voltage Controlled Oscillator
VCP Video Control Panel
VCRU Vapor Cycle Refrigeration Unit
VCS Ventilation Control System
VCTREND Airspeed Tendency
VCU Video Control Unit
VD Design Diving Speed
VD Heading to a DME Distance
VDAR Virtual DAR
VDC Voltage Direct Current
VDEV Vertical Deviation
VDF Very High Frequency Direction Finding Station
VDHM Variable Displacement Hydraulic Motor
VDL VHF Data Link
VDOS Vendor Documentation On-line Service
VDR VHF Data Radio
VDU Video Display Unit
VEADB Video on demand Enhanced Area Distribution Box
VEL Velocity
VENT Ventilation
VERT Vertical
VERT REV Vertical Revise
VF Virtual Flight
VFF Virtual First Flight
VFG Variable Frequency Generator
VFR Visual Flight Rules
VFTO Final Takeoff Speed
VG Vertical Gyro
VG Virtual Grounding
VGM Versatile Graphical Module
VHCU Versatile Heating Control Unit
VHDU Versatile Heating Data Unit
VHF Very High Frequency
VHV Very High Voltage
VI Validation Item
VIB Vibration
VIE Volunteer for International Experience
ViFST Virtual Full Scale Test
VIGV Variable Inlet Guide Vane
VIM Vendor Information Manual
VIMU Video Multiplexer Unit
VIP Virtual Integration Platform
VL Virtual Link
VLF Very Low Frequency
VLLDC Very Low Level DC Voltage
VLSI Very Large Scale Integrated
VLV Valve
VM Voltmeter
VMC Visual Meteorological Conditions
VMI Vendor Managed Inventory
VMU Video Modulator Unit
VN Virtual Neutral
VoB Voice of Business
VoC Voice of the Customer
VOC Voltage Open Circuit
VOCs Volatile Organic Compounds
VOD Video On Demand
VODDSU VOD Data Server Unit
VODMU VOD Modulator Unit
VODSU VOD Server Unit
VOL Volume
VoP Voice of Process
VOR VHF Omnidirectional Range
VORV Variable Oil Reduction Valve
VOT Voter
VOZC Volatile Organic Compound and Ozone Converter
VPM Virtual Product Modelling
VPN Virtual Private Network
VPSA Vendor Product Support Agreement
VQAR Virtual QAR
VR Rotation Speed
VR Voltage Regulator
VRU Video Reproducer Unit
VS Virtual Splice
VSB Vendor Service Bulletin
VSC Vacuum System Controller
VSCF Variable Speed Constant Frequency
VSCU Video System Control Unit
VSD Vertical Situation Display
VSEB Video Seat Electronic Box
VSG V Shape Galley
VSI Vertical Speed Indicator
VSM Value Stream Mapping
VS-NfD Verschlusssache - Nur f�r den Dienstgebrauch (German
equivalent to NATO restricted).
VSV Variable Stator Vane
VSVA Variable Stator Vane Actuator
VSWR Voltage Standing Wave Ratio
VT Vertical Tail
VT Virtual Terminal block
VtB Value to Business
VTC Validation of Type Certificate
VTCDS Validation Type Certification Data Sheet
VTP Vertical Tail Plane
VTR Video Tape Reproducer
VTS Vacuum Toilet System
VV Velocity Vector
VVO Verification and Validation Objective
VWM Vendor Warranty Manual

W

W West
W White
W Weight
W Wire
W/O Work Order
W/V Wind Direction and Speed
W3C World Wide Web Consortium
WA Wind Angle
WA Work Authorization
WABSIC Wheel And Brake System Integrated Component
WACC Weighted Average Cost of Capital
WACS Wireless Airport Communication System
WAI Wing Anti-Ice
WAN Wide Area Network
WAP Wireless Access Point
WARN Warning
WASG World Airlines and Suppliers Guide
WATOG World Airlines Technical Operations Glossary
WB Wide Body
WB Weight and Balance
WBA Weight and Balance Application
WBBC Weight and Balance Backup Computation
WBC Weight & Balance Computer
WBM Weight and Balance Manual
WBS Weight and Balance System
WBS Work Breakdown Structure
WC Wording Change
WCO Wireless Cabin Operation
WCR Weight and Balance Compliance Report
WD Warning Display
WD Wing Datum
WD Wiring Diagram
WD Wear Damage
WDB Wall Disconnect Box
WDI Wind Direction Indicator
WDM Wiring Diagram Manual
WDO Window
WEC Welcome Effect Ceiling
WEFA Wireless Extension For AIDS
WEL Wall Emergency Light
WFD Widespread Fatigue Damage
WFOV Wide Field of View
WG Wing
WG Wave Guide
WG Working Group
WGD Windshield Guidance Display
WGDC Windshield Guidance Display Computer
WGDS Windshield Guidance Display System
WGL Wireless Ground Link
WH WareHouse
WHC Window Heat Computer
WHL Wheel
WINDML Windmilling
WIP Wing Ice Protection
WIP Work In Progress
WIPCU Water Ice Protection Control Unit
WIPDU Water Ice Protection Data Unit
WIPS Wing Ice Protection System
WIRC Warning - Inhibition - Recall - Clear
WLAN Wireless Local Area Network
WLC Wing Lower Cover
WLDP Warning Light Display Panel
WLG Wing Landing Gear
WLL Working Load Limit
WLM Wireless LAN Manager
WLP Weight Limited Payload
WLU Wireless LAN Unit
WM Wattmeter
WM Wiring Manual
WMEL Wall Mounted Emergency Light
WMS Warehouse Management System
WO Wash-out
WO Work Order
WoffW Weight off Wheels
WOJ Weight on Jacks
WOR Wear Out Rate
WOW Weight On Wheels
WP Work Package
WPD Work Package Description
WPL Work Package Leader
WPS Workpackage Specification
WPT Waypoint
WPT Work Package Team
WPV Water Pulse Valve
WQN Works Query Note
WR Weather Radar
WR Weighing Report
WRDC Wheel Remote Data Concentrator
WRG Wiring
WRK Work
WRK Working
WRM Weight Review Meeting
WS Wind Speed
WS Wireless System
WS Work Specification
WSC Window Shade Controller
WSCP Warning and System Control Panel
WSCS Wheel Steering Control System
WSDP Warning and System Display
WSHLD Windshield
WSR Weekly Service Report
WSSG Warning System Symbol Generator
WT Weight
WT Wind Tunnel
WTB Wing Tip Brake
WTR Water
WTT Wind Tunnel Testing
WUC Work Unit Cost
WUC Wing Upper Cover
WUL Wheel Up Landing
WV Weight Variant
WX Weather Mode (ND)
WXR Weather Radar

X

X Cross
X Trans
XARM Cross Arm
XBAR Crossbar
X BLEED Crossbleed
XCHECK Crosscheck
XCVR Transceiver
XDCR Transducer
X FEED Crossfeed
XFMR Transformer
XFR Transfer
XING Crossing
X LINE Crossline
XLOAD Crossload
XLTR Translator
XML Extensible Mark-up Language
XMSN Transmission
XMTR Transmitter
XPDR Transponder
XPNDR Transponder
XREF Crossreference
XSEC Extra Section
XT Reception (Transponder to TCAS)
XTAL Crystal
X-TALK Cross-talk
XTK Cross Track Deviation
XTK Cross Track Distance
XTK Cross Track Error
X VALVE Cross Valve
XWB eXtra Wide Body
XWIND Crosswind

Y