CUSTOMIZATION AIRCRAFT TYPES DOCTYPES REVISION DATE REVISION NUMBER TITLE

A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS

TAIL NUMBER - MSN - FSN:
Print date: 2024-09-26 04:53:26

** ON A/C ALL

LIST OF ABBREVIATIONS

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CUSTOMIZATION AIRCRAFT TYPES DOCTYPES REVISION DATE REVISION NUMBER TITLE
A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
TAIL NUMBER - MSN - FSN:
Print date: 2024-09-26 04:53:26

3D Three Dimensional
4D Four Dimensional
A Amber
A-ICE Anti-Ice
A.ICE Anti-icing
A/BRK Autobrake
A/C Aircraft
A/COLL Anti-Collision
A/D Analog/Digital
A/DC Analog-to-Digital Converter
A/G Air to Ground
A/L Airline
A/N Alphanumeric
A/S Airspeed
A/SKID Anti-Skid
A/STAB Auto Stabilizer
A/THR Autothrust
A/XFMR Autotransformer
AAC Airline Administrative Communications
AAP Additional Attendant Panel
AAP Aft Attendant Panel
ABCM Alternate Brake Control Manifold
ABCU Alternate Braking Control Unit
ABD Airbus Directive and Procedure
ABDC Avionics Broadcast Data Collector
ABM APU Build-up Manual
ABN Abnormal
ABNORM Abnormal
ABPM Avionics Bare Processing Module
ABRN Airborne
ABS Autobrake System
ABSELV Alternate Brake Selector Valve
ABSORB Absorber
ABV Above
AC Aircraft Characteristics - Airport and Maintenance Planning
AC Alternating Current
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
CUSTOMIZATION AIRCRAFT TYPES DOCTYPES REVISION DATE REVISION NUMBER TITLE
A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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ACARS Aircraft Communication Addressing and Reporting System

ACB Attendant Call Button
ACC Active Clearance Control
ACCEL Acceleration/Accelerate
ACCLRM Accelerometer
ACCU Accumulator
ACCUR Accuracy
ACD Additional Control Device
ACD Aircraft Control Domain
ACDF Automatic CMS Dump Function
ACFT Aircraft
ACGC Aviation Complementary Ground Component
ACGS Aircraft GSM Server
ACK Acknowledge
ACM Air Cycle Machine
ACMF Aircraft Condition Monitoring Function
ACMM Abbreviated Component Maintenance Manual
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
ACN Aircraft Classification Number
ACOC Air Cooled Oil Cooler
ACP Area Call Panel
ACP Audio Control Panel
ACQ Acquire
ACQN Acquisition
ACR Avionics Communication Router
ACR Avionics Configuration Report
ACRIF ACR Instrumentation Function
ACRS Avionics Communication Routing System
ACS Air Conditioning System
ACSC Air Conditioning System Controller
ACT Active
ACT Additional Center Tank
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
CUSTOMIZATION AIRCRAFT TYPES DOCTYPES REVISION DATE REVISION NUMBER TITLE
A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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ACTG Actuating
ACTI Assembly Critical Item
ACTIV Active
ACTR Actuator
ACTUAL Aircraft Configuration of Tracked Units at Aircraft Level
ACTVN Activation
ACTVT Activate
ACU Air Cooling Unit
ACU Antenna Control Unit
ACU Alpha Call-Up
ACUTE Airbus Cockpit Universal Thrust Emulator
AD Airworthiness Directive
ADB Airport DataBase
ADB Area Distribution Box
ADBP Avionics Data Broadcast Protocol
ADC Air Data Computer
ADC Aircraft Data Collection
ADCN Avionics Data Communication Network
ADD Addition
ADD Additional
ADF Automatic Direction Finder
ADF As-Defined
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
ADL Airborne Data Loader
ADLU Airborne Data Loading Unit
ADM Air Data Module
ADMZ Aircraft DeMilitarized Zone
ADPM Aircraft Deactivation Procedures Manual
ADPTR Adapter
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
CUSTOMIZATION AIRCRAFT TYPES DOCTYPES REVISION DATE REVISION NUMBER TITLE
A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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ADR Air Data Reference

ADS Air Data System
ADS Automatic Dependent Surveillance
ADS Aircraft maintenance Documentation System
ADS-B Automatic Dependent Surveillance-Broadcast
ADS-C Automatic Dependent Surveillance-Contract
ADSM Avionics Data Storage Module
ADT Autonomous Distress Tracking
ADTS Autonomous Distress Tracking System
ADU Area Distribution Unit
ADV Advisory
AECM Alternate Extension Control Module
AES Aircraft Earth Station
AESS Aircraft Environment Surveillance System
AESU Aircraft Environment Surveillance Unit
AEVC Avionics Equipment Ventilation Computer
AF Audio Frequency
AFCD Aft Cargo Door
AFDX Avionics Full Duplex Switched Ethernet
AFECU Automatic Fire Extinguishing Control Unit
AFFECTD Affected
AFFIRM Affirmative
AFI Aircraft Fault Isolation
AFL Auto Flush
AFM Airplane Flight Manual
AFMC Auxiliary Fuel Management Computer
AFMR Airframer
AFN ATS Facilities Notification
AFR Aircraft Fault Reporting
AFRP Aramid Fiber Reinforced Plastic
AFS Automatic Flight System
AFTR After
AGB Accessory Gearbox
AGB Angle Gearbox
AGC APU Generator Contactor
AGC Automatic Gain Control
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
CUSTOMIZATION AIRCRAFT TYPES DOCTYPES REVISION DATE REVISION NUMBER TITLE
A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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AGE Aircraft Ground Equipment

AGL Above Ground Level
AGLC APU Generator Line Contactor
AGP Alternate Gauging Processor
AGS Aircraft GSM Server
AGS Air Generation System
AGU Air Generation Unit
AGW Actual Gross Weight
AIBU Advanced Illumination Ballast Unit
AICF Anti Ice Control Function
AICS Anti Ice Control System
AICU Anti Ice Control Unit
AIDS Aircraft Integrated Data System
AIL Aileron
AIM Aircraft Integrated Maintenance
AIM Aircraft Identification Module
AIME Autonomous Integrity Monitored Extrapolation
AIMI Avionics Information Management Interface
AINS Aircraft Information Network System
AIP Attendant Indication Panel
AIPC Aircraft Illustrated Parts Catalog
AIPR Avionic Internal Parameter Requestor
AIR Aircraft Inspection Report
AIS Audio Integrated System
AISD Airline Information Services Domain
AIT Accident Information Transmission
AIU Aircraft Interface Unit
ALE Automatic Link Establishment
ALIGN Alignment
ALIGND Aligned
ALLWD Allowed
ALNA Airline Network Architecture
ALPHA Angle-of-Attack
ALS Airworthiness Limitation Section
ALSCU Auxiliary Level Sensing Control Unit
ALT Altitude
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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ALT REFF Alternate to a Retraction, Extension and/or Free Fall test

ALTM Altimeter
ALTN Alternate
ALTN Alternative
ALTU Annunciator Light Test Unit
AM Amplitude Modulation
AMB Ambient
AMD Aircraft Maintenance Description
AMDB Airport Mapping DataBase
AME Amplitude Modulation Equivalent
AMEX Avionics Message Exchanger
AMI Airline Modifiable Information
AMM Aircraft Maintenance Manual
AMP Aircraft Maintenance Procedure
AMPL Amplifier
AMS Air-ground Message Server
AMU Audio Management Unit
ANDT Aircraft Non Destructive Test
ANF Airport Navigation Function
ANI Analog Input
ANLG Analogic
ANN Annunciator
ANN LT Annunciator Light
ANNCE Announce
ANNCMT Announcement
ANO Analog Output
ANSA At Nearest Suitable Airport
ANSI American National Standards Institute
ANSU Aircraft Network Server Unit
ANSU-OPS Aircraft Network Server Unit - Operations
ANT Antenna
AOA Angle Of Attack
AOC Airline Operational Control
AOD Audio on Demand
AOG Aircraft On Ground
AOHE Air Oil Heat Exchanger
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
CUSTOMIZATION AIRCRAFT TYPES DOCTYPES REVISION DATE REVISION NUMBER TITLE
A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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AOHX Air/Oil Heat Exchanger

AOM Aircraft Operating Manual
AOMT Airbus Onboard Maintenance Tool
AOT Alert Operators Transmission
AP Autopilot
AP/FD Autopilot/Flight Director
APA Automatic Pre-Arm
APD Aircraft Performance Data
APF Aft Pylon Fairing
API Application Programming Interface
APLC Aircraft Power Line Conditioner
APM ARINC Processing Module
APM Airplane Personality Module
APP Appearance
APP Approach Control-Approach Control Office
APPL Application
APPR Approach
APPROX Approximately
APPSM Approach Stabilization Monitor
APPU Asymmetry Position Pick-off Unit
APR Automatic Power Reserve
APS Absolute Pressure Sensor
APS Avionics Printing Service
APS Antenna Power Supply
APT Airbus Pilot Transition
APU Auxiliary Power Unit
APU AFE APU Automatic Fire Extinguishing Control Unit
AR As Required
ARF ATSU Routing Function
ARFC Aircraft Rescue & Fire Fighting Chart
ARINC Aeronautical Radio Incorporated
ARM Aircraft Recovery Manual
ARN Aircraft Registration Number
ARP Aerospace Recommended Practice
ARPT Airport
ARTF Artificial
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
CUSTOMIZATION AIRCRAFT TYPES DOCTYPES REVISION DATE REVISION NUMBER TITLE
A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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ARU Aircraft Router Unit

ARU Audio Reproducer Unit
ARU Air Refrigeration Unit
ARV Alternate Refill Valve
ASA All Speed Aileron
ASA Audio and Sign Adapter
ASCII American Standard Code for Information Interchange
ASCU Air Systems Control Unit
ASD Accelerate Stop Distance
ASD Aircraft Schematic Diagram
ASE Airborne Support Equipment
ASF Avionics Server Function
ASFC Avionics Server Function Cabinet
ASHM Airframe Structure Health Monitoring
ASI Airspeed Indicator
ASIC Application Specific Integrated Circuits
ASLC ACD Security Log Collector
ASM Aircraft Schematics Manual
ASM Air Separation Module
ASN Aerospatiale Norme (Standard)
ASP Air Supply System
ASP Audio Selector Panel
ASPSU Autonomous Standby Power Supply Unit
ASR Aircraft Structural Repair
ASS Aircraft Security System
ASSCU Aircraft Security System Control Unit
ASSY Assembly
ASU Attendant Service Unit
ASYM Asymmetric(al)
AT Autothrust
ATA Actual Time of Arrival
ATA Air Transport Association of America
ATC Air Traffic Control
ATCI Air Traffic Control and Information
ATCRB Air Traffic Control Radar Beacon
ATD Actual Time of Departure
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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ATE Automatic Test Equipment

ATI Air Transport Indicator
ATIMS Air Traffic and Information Management System
ATIS Automatic Terminal Information Service
ATLAS Abbreviated Test Language for Avionics Systems
ATM Air Traffic Management
ATN Aeronautical Telecommunications Network
ATQC Airbus Temporary Quick Change
ATR Austin Trumbull Radio
ATRCCS Automatic Turbine Rotor Clearance Control System
ATRU Automated Transformer Rectifier Unit
ATS Air Traffic Service
ATS Autothrottle System
ATSAW Airborne Traffic Situational Awareness
ATSU Air Traffic Service Unit
ATT Attitude
ATTND Attendant
ATU AutoTransformer Unit
ATUC ATU Contactor
ATULC ATU Line Contactor
ATUPU ATU Protection Unit
AUTO Automatic
AUTOLAND Automatic Landing
AUW All-Up Weight
AUX Auxiliary
AV Adjustment Value
AVAIL Availability
AVAIL Available
AVIS Aircraft Virtual Insider System
AVM Avionics Video Module
AVNCS Avionics
AVS Avionics Ventilation System
AWD Aircraft Wiring Diagram
AWL Aircraft Wiring List
AWL Attendant Work Light
AWM Aircraft Wiring Manual
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
CUSTOMIZATION AIRCRAFT TYPES DOCTYPES REVISION DATE REVISION NUMBER TITLE
A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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AWY Airway
AX Longitudinal Acceleration
AY Lateral Acceleration
AZ Azimuth
AZFW Actual Zero Fuel Weight
Aircraft Communication Addressing and Reporting System over Intern
AoIP
et Protocol
ArGO Airbus Ground Operations
B Blue
B/C Business Class
BAF BITE Access Function
BAG Bandwidth Allocation Gap
BARO Barometric
BAS Bleed Air System
BAT Battery
BATLC Battery Line Contactor
BB Building Block
BBAND Broadband
BCD Binary Coded Decimal
BCDS BITE Centralized Data System
BCF Brake Cooling Fan
BCL Battery Charge Limiter
BCM Backup Control Module
BCN Beacon
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
BCVS Bulk Cargo Video System
BF Belly Fairing
BFE Buyer Furnished Equipment
BFO Beat Frequency Oscillator
BGAN Broadband Global Area Network
BGM Boarding Music
BH Block Hours
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
CUSTOMIZATION AIRCRAFT TYPES DOCTYPES REVISION DATE REVISION NUMBER TITLE
A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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Print date: 2024-09-26 04:53:26

BHD Bulkhead
BIOS Basic Input Output System
BITE Built-In Test Equipment
BIU BITE Interface Unit
BKFLW Backflow
BKUP Backup
BL Bleed
BLES Brake Life Extension System
BLG Body Landing Gear
BLK Black
BLK Block
BLOW Blower
BLS Beluga Loading Software
BLST Ballast
BLV Bleed Valve
BLWG Blowing
BLWR Blower
BM Bronze Mesh
BMC Bleed Monitoring Computer
BMI BITE Monitoring Interface
BMPS Bleed Monitoring Pressure Sensor
BMU Battery Management Unit
BNDRY Boundary
BNR Binary
BOAS Blade Outer Air Seal
BOMU Bleed and Overheat Monitoring Unit
BOT Begin of Tape
BOT Bottom
BPS Backup Power Supply
BPS Bleed Pressure Sensor
BPTU Brake Pedal Transmitter Unit
BRG Bearing
BRK Brake
BRKNG Braking
BRKR Breaker
BRKT Bracket
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
CUSTOMIZATION AIRCRAFT TYPES DOCTYPES REVISION DATE REVISION NUMBER TITLE
A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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BRT Bright
BRT Brightness
BSCS Braking and Steering Control System
BSCU Braking and Steering Control Unit
BSU Beam Steering Unit
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
BTR Bus Tie Relay
BTS Base Transceiver Station
BTS Bleed Temperature Sensor
BTSTRP Buttstrap
BTV Brake to Vacate
BU Battery Unit
BUS Busbar
BUSS Back-Up Speed Scale
BWS Body Wheel Steering
BXL Beluga XL
BYDU Back-Up Yaw Damper Unit
BYP Bypass
BoP Balance of Plant
C Celsius
C Centigrade
C Close
C Cyan
C-MOS Complementary Metal Oxyde Semiconductor
C/B Circuit Breaker
C/L Checklist
C/O Change Over
C/S Call Sign
CA Cable Assembly
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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CA/CRL Certification Authority/Certificate Revocation List

CAB Cabin
CAL Calibration
CAL Calibrated
CAM Cabin Assignment Module
CAM-BTA Corrected Altimeter Monitor - Below Transition Altitude
CAMIP Capacitive Measurements of Insulating Properties
CAMO Continuing Airworthiness Management Organisation
CAN Controller Area Network
CANC Cancellation
CANCD Cancelled
CAO Ceiling Air Outlet
CAOA Corrected Angle Of Attack
CAOM Cabin Attendant Operating Manual
CAPT Captain
CAS Calibrated Air Speed
CAS Cabin Attendant Seat
CAT Category
CATCH Complex Anomaly Tracking and Search
CAU Crew Alerting Unit
CAUT Caution
CAX Compartment Air Extraction
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
CBP Circuit Breaker Panel
CC Current Comparator
CCB Compartment Control Box
CCB Cargo Control Box
CCC Crash Crew Chart
CCCP Compressor Cavity Control Pressure
CCD Cursor Control Device
CCD Cabin Crew Data
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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CCDS Cabin and Cargo Digitalization System

CCG Cabin Configuration Guide
CCMail Cabin Crew Mailing
CCOC Combustion Casing Outer Case
CCOM Cabin Crew Operating Manual
CCR Credit Card Reader
CCRC Cabin Crew Rest Compartment
CCRM Cabin Crew Rest Module
CCS Cabin Communication System
CCU CSAS Control Unit
CCW Counter Clockwise
CD Compact Disk
CD Control Display
CDA Continuous Descent Approach
CDAM Centralized Data Acquisition Module
CDAS Cargo Door Actuation System
CDAU Centralized Data Acquisition Unit
CDC Cargo Door Controller
CDC Crash Detection Circuit
CDCCL Critical Design Configuration Control Limitation
CDCV Cargo Door Control Valve
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
CDP Cargo Display Panel
CDP Compressor Discharge Pressure
CDS Component Documentation Status
CDS Control and Display System
CDSS Cockpit Door Surveillance System
CDSU Cockpit Door Surveillance Unit
CDU Center Drive Unit
CDU Control and Display Unit
CE Centralized Equipment
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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CED Cooling Effect Detector

CEH Complex Electronic Hardware
CEL Component Evolution List
CELLI Ceiling Emergency LED Light
CEO Current Engine Option
CEV Centre d'Essais en Vol
CEV Commercial Equipment Ventilation
CFC Carbon Fiber Composite
CFCRC Center Flight Crew Rest Compartment
CFDIU Centralized Fault Display Interface Unit
CFDS Centralized Fault Display System
CFFC Cockpit Fixed Frequency Converter
CFM Cable Fabrication Manual
CFMI CFM International
CFR Current Flight Report
CFRP Carbon Fiber Reinforced Plastic
CFS Cabin File Server
CFVCU Cargo Fire Verification Control Unit
CFVS Cargo Fire Verification System
CG Center of Gravity
CGCS Center of Gravity Control System
CH Character
CH Cargo Hold
CH Compass Heading
CHAN Channel
CHG Change
CHMBR Chamber
CHRG Charge
CHRO Chronometer
CI Cost Index
CIC Compressor Intermediate Case
CIDS Cabin Intercommunication Data System
CIN Change Identification Number
CINS Cabin Information Network System
CIR Common Information Repository
CIT Compressor Inlet Temperature
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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CIU Camera Interface Unit

CJC Cold Junction Compensation
CK Check
CKPT Cockpit
CKT Circuit
CL Center Line
CL Checklist
CL/OP Closure/Opening
CLB Climb
CLCTR Collector
CLEDU Cabin LED Unit
CLG Centerline Landing Gear
CLK Clock
CLM Component Location Manual
CLNG Ceiling
CLOG Clogging
CLOGD Clogged
CLPR Clapper
CLR Clear
CLRD Cleared
CLRNC Clearance
CLS Cargo Loading System
CLS Cargo Loading System Manual
CLSD Closed
CLSG Closing
CM Conversion Manual
CM Conversion Module
CMC Central Maintenance Computer
CMD Command
CMEU Cabin Passenger Management Memory Expansion Unit
CMF Central Maintenance Function
CML Consumable Material List
CMM Calibration Memory Module
CMM Component Maintenance Manual
CMM IPL Component Maintenance Manual Illustrated Parts List
CMMV Component Maintenance Manual Vendor
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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CMPLTD Completed
CMPTR Computer
CMR Certification Maintenance Requirements
CMS Centralized Maintenance System
CMS Component Maintenance Sheet
CMT Cabin Management Terminal
CMU Communications Management Unit
CMV Concentrator and Multiplexer for Video
CNA Common Nozzle Assembly
CNCTN Connection
CNCTR Connector
CNSU Cabin Network Server Unit
CNTNR Container
CNTOR Contactor
CNTRTR Concentrator
CNU Cabin Network Unit
CNX CONNECTIVITY
CO RTE Company Route
COAS Cabin Operations Applications System
COAX Coaxial
COC Cabin Operation Center
COC Customer Originated Change
COCT Cabin Operations Consultation Tool
COLLI Contour LED Light
COLTS Combined Oil Level and Temperature Sensor
COM Communication
COM Command
COMC CSAS Overheat Monitoring Controller
COMDL Coding Module
COML Commercial
COMP Compass
COMP Compensator
COMPSN Compensation
COMPT Compartment
COMPTR Comparator
COND Condition
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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COND Conditioned
COND Conditioning
CONDTR Conditioner
CONFIG Configuration
CONFIRMD Confirmed
CONSUMPT Consumption
CONT Continue
CONT Continuous
CONT Controller
CONV Converter
COOL Cooler
COOL Cooling
COOLG Cooling
COOLR Cooler
COORD Coordination
COS Cowl Opening System
COSPAS Cosmicheskaya Sistema Poiska Avariynyh Sudov
COTS Commercial Off-The-Shelf
COUNT Counter
COWL Cowling
CPC Cabin Pressure Controller
CPCS Cabin Pressure Control System
CPCU Cabin Pressure Control Unit
CPDB Customized Performance DataBase
CPDLC Controller-Pilot DataLink Communication
CPIF Control Power Intermediate Frequency
CPIOM Core Processing Input/Output Module
CPLG Coupling
CPLR Coupler
CPMS Cabin and Passenger Management System
CPMU Cabin Passenger Management Unit
CPNY Company
CPRSR Compressor
CPU Central Processing Unit
CRC Continuous Repetitive Chime
CRC Cyclic Redundancy Check
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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CRC Crew Rest Compartment

CRDC Common Remote Data Concentrator
CRES Corrosion-Resistant Steel
CRG Cargo
CRI Certification Review Item
CRM Communication Router Module
CROR Contra Rotating Open Rotor
CROSSFEEDR Crossfeeder
CRR Crew Rest Room
CRS Course
CRS Certificate of Release to Service
CRT Cathode Ray Tube
CRU Central Refirgeration Unit
CRU Cabin Router Unit
CRU Card Reader Unit
CRZ Cruise
CS Center Spar
CS Certification Specification
CSAS Conditioned Service Air System
CSBS Controllable Sunlight Blocking System
CSBSU Controllable Sunlight Blocking System Unit
CSD Constant Speed Drive
CSDM Cargo Smoke Detection Module
CSDU Compact Satellite Data Unit
CSK Countersink
CSL Console
CSM/G Constant Speed Motor/Generator
CSR Certificate Signing Request
CSTR Constraint
CSU Command Sensor Unit
CT Current Transformer
CTK Center Tank
CTL Central
CTL Control
CTLR Controller
CTR Center
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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CTU Cabin Telecommunications Unit

CU Control Unit
CU Cockpit Unit
CUDU Current Unbalance Detection Unit
CUR Current
CVDR Cockpit Voice and Data Recorder
CVM Cabin Video Monitoring
CVMS Cabin Video Monitoring System
CVMU Cell Voltage Monitoring Unit
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
CWLU Cabin Wireless LAN Unit
CWS Cabin Work Station
CWSIU Combined Wheel Speed Interface Unit
CY Cycle
CYL Cylinder
CaDoc Cabin Documentation Display
D-ATIS Digital Automatic Terminal Information System
D-ULPA Double Ultra Low Particulate Air
D/LNA Diplexer/Low Noise Amplifier
DA Drift Angle
DAC Digital to Analog Converter
DAC Drawing Aperture Card
DADC Digital Air Data Computer
DAGM Dry Air Generation Module
DAGS Dry Air Generation System
DAMP Damping
DAMPG Damping
DAR Digital ACMS Recorder
DAR Digital AIDS Recorder
DASM Door ASymmetry Monitoring
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DAU Data Acquisition Unit

DB Database
DBC Data Bus Communication
DBCR DataBase Change Request
DBLR Doubler
DBPS Display Based Passenger Sign
DBTS Data Broadband Transceiver System
DBUS Digital Backup Speed
DC Direct Current
DCD Data Control and Display
DCDR Decoder
DCDU Datalink Control and Display Unit
DCL Digital Cabin Logbook
DCL-CCT Digital Cabin Logbook - Cabin Configuration Tool
DCP Display Control Panel
DCR Dock on Crew Rest
DCRC Dock on Crew Rest Compartment
DCU Dimming Control Unit
DCU Direction Control Unit
DCV Directional Control Valve
DDM Digital Data Module
DDP Declaration of Design and Performance
DDRMI Digital Distance and Radio Magnetic Indicator
DDV Direct Drive Valve
DECEL Decelerate
DECOMPRESS Decompression
DECR Decrease
DEDP Data Entry and Display Panel
DEF Definition
DEFOG Defogging
DEFRD Deferred
DEFUEL Defueling
DEG Degree
DEGRADD Degraded
DEL Delete
DELTA P Differential Pressure
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DEOA Door Emergency Opening Actuator

DEP Departure
DEPRECS Deployable Recorder System
DEPRESS Depressurization
DES Descend
DES Descent
DEST Destination
DET Detection
DET Detector
DETECTD Detected
DEU Decoder/Encoder Unit
DEV Deviation
DF Direction Finder
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
DFIDU Dual Function Interactive Display Unit
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
DFSOV Dual Flow Shut-Off Valve
DGI Digital Input
DGO Digital Output
DGPS Differential Global Positioning System
DH Decision Height
DHCP Dynamic Host Configuration Protocol
DI Deionization
DIA Diameter
DIBU Door Illumination Ballast Unit
DIFF Differential
DIM Direction Input Module
DIMM Dimmable
DIP Dual In-line Package
DIP Door Indication Panel
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DIPLXR Diplexer
DIR Direct
DIR Direction
DIR Director
DISC Disconnect
DISC Disconnected
DISC Disconnection
DISCH Discharge
DISCH Discharged
DISCNTY Discontinuity
DIST Distance
DISTR Distribute
DISTR Distribution
DISTR Distributor
DITCH Ditching
DITS Digital Information Transfer System
DIU Digital Interface Unit
DIVERTG Diverting
DLC Direct Lift Control
DLCM Data Loading Configuration Manager
DLCS Data Loading and Configuration System
DLK Data Link
DLOAD Data Loading
DLRB Data Loading Routing Box
DLS Data Loading Selector
DLSU Data Loading Selector Unit
DM Data Module
DM Dispatch Message
DMA Direct Memory Access
DMC Display Management Computer
DMDLTR Demodulator
DME Distance Measuring Equipment
DMFF Door Monitoring and Flight Lock Function
DMM Data Memory Module
DMP Display Management Processor
DMPR Damper
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DMU Data Management Unit

DMZ DeMilitarized Zone
DN Down
DNC Do Not Connect
DNI Drawing Numerical Index
DNLK Downlock
DNLKD Downlocked
DNLNK Downlink
DOLLI Dome LED Light
DOW Dry Operating Weight
DP Design Principle
DPCU Digital Passenger Control Unit
DPDT Double Pole/Double Throw
DPE Distress Pre-activation of ELT
DPI Differential Pressure Indicator
DPS Differential Pressure Sensor
DR Dead Reckoning
DR Door
DRAIMS Digital Radio and Audio Integrating Management System
DRM Duct Repair Manual
DRMI Distance Radio Magnetic Indicator
DRVG Driving
DRVR Driver
DS/C Digital Server/Controller
DSB Door Sensor Block
DSC Digital Signature Checker
DSCRT Discrete
DSCS Door and Escape Slide Control System
DSCS Door and Slide Control System
DSDL Dedicated Serial Data Link
DSEB Digital Seat Electronic Box
DSF Data Security Filter
DSI Discrete Input
DSIP Door/Slide Indication Panel
DSM Decorative Sheet Material
DSMCU Doors and Slides Management Control Unit
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DSMS Doors and Slides Management System

DSO Discrete Output
DSP Datalink Service Provider
DSPL Display
DSPLYD Displayed
DSUB D-subminiature
DT Distress Tracking
DT ALI Damage-Tolerant Airworthiness Limitation Items
DTD Document Type Definition
DTG Distance to Go
DTMF Dual Tone Multiple Frequency
DTMS Damage Tolerance Monitoring System
DTMU Damage Tolerance Monitoring Unit
DU Display Unit
DVD Digital Versatile Disk
DVI Digital Visual Interface
DVI Detailed Visual Inspection
DVR Digital Video Recorder
DWC Drip Water Collector
DWG Drawing
DaFA Data For Application
E East
E-Rudder Electrical Rudder
E/ECI Electrical/Electronic Common Installation
E/F Equipment/Furnishings
EABDC Enhanced Aircraft Broadcast Data Collector
EAPAS Enhanced Airworthiness Program for Aeroplane Systems
EAROM Electrically Alterable Read Only Memory
EATULC Emergency ATU Line Contactor
EBAS Engine Bleed Air System
EBATC Emergency Battery Contactor
EBCU Emergency Brake Control Unit
EBHA Electrical Backup Hydraulic Actuator
EBTAC Emergency Bus Tie AC Contactor
EBTC Emergency Bus Tie Contactor
EBTDC Emergency Bus Tie DC Contactor
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EBU Engine Build-up Unit

ECAM Electronic Centralized Aircraft Monitoring
ECAM TC ECAM Temporary Change
ECAS Emergency Cabin Alerting System
ECB Electronic Control Box
ECF Expanded Copper Foil
ECLS Electrical Cargo Loading system
ECM Engine Condition Monitoring
ECMS Electrical Contactor Management System
ECMU Electrical Contactor Management Unit
ECN Engineering Change Note
ECON Economy
ECP ECAM Control Panel
ECS Environmental Control System
ECU Electronic Control Unit
ECUCV Electronic Control Unit Cooling Valve
ED Engine Display
EDIU Electrical Discrete Interface Unit
EDM Electrical Discharge Machining
EDMU Electrical Distribution Monitoring Unit
EDP Engine Driven Pump
EDR Eddy Dissipation Rate
EDVS Electronic Direct View System
EDW Electro-Dimmable Window
EEC Electronic Engine Control
EEC Engine Electronic Controller
EEC Emergency Electrical Configuration
EENMU Emergency Electrical Network Management Unit
EEPDC Emergency Electrical Power Distribution Center
EEPMS Emergency Escape Path Marking System
EEPROM Electrically Erasable Programmable Read Only Memory
EFB Electronic Flight Bag
EFCC Electronic Flight Control Computer
EFCC Emergency Flight Control Contactor
EFCS Electrical Flight Control System
EFCU Electrical Flight Control Unit
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EFF Effective
EFF Effectivity
EFF Equipped Front Face
EFF/FFU Electronic Flight Folder/Flight Follow-Up
EFIS Electronic Flight Instrument System
EFLSCU Enhanced Fuel Level Sensing Control Unit
EFOB Estimated Fuel on Board
EGIU Electrical Generation Interface Unit
EGLC Emergency Generator Line Contactor
EGMS Electrical Galley Management System
EGPWM Enhanced Ground Proximity Warning Module
EGPWS Enhanced Ground Proximity Warning System
EGT Exhaust Gas Temperature
EHA Electro-Hydrostatic Actuator
EHAC Electro-Hydrostatic Actuator Contactor
EHC Electrical Heater Controller
EHCU Electromechanical Handforce Control Unit
EHHDLU Extended Handheld download Unit
EHM Engine Health Monitoring
EHS Electrical Heater System
EHSV Electro Hydraulic Servo Valve
EICU EFB Interface and Communication Unit
EIF Engine Interface Function
EIM EFB Interface Module
EIPM Engine Interface Power Management
EIPMU Engine Interface Power Management Unit
EIS Electronic Instrument System
EIU Engine Interface Unit
EIVMU Engine Interface and Vibration Monitoring Unit
EL Electric
ELA Electrical Load Analysis
ELAC Elevator Aileron Computer
ELAN Ethernet Local Area Network
ELAS Emergency Lighting Activation Switch
ELB Electronic Log Book
ELC Electronic Library Computer
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ELC Emergency Line Contactor

ELCO Exterior Lights Controller
ELEC Electric
ELEC Electrical
ELEC Electricity
ELEK Electronic
ELEV Elevation
ELEV Elevator
ELEVN Elevation
ELEVR Elevator
ELF Engineering support and data Link Function
ELFDB Emergency Light Floor Disconnect Box
ELM Electrical Load Management
ELMF Electrical Load Management Function
ELMS Electrical Load Management System
ELMU Electrical Load Management Unit
ELPU Emergency Lightning Protection Unit
ELS Electronic Library System
ELSD Electrical Load Sensing Device
ELT Emergency Locator Transmitter
ELT-DT Emergency Locator Transmitter - Distress Tracking
EMA Electronic Module Assembly
EMC Electromagnetic Compatibility
EMCD Electronic Magnetic Chip Detector
EMCU Electric Motor Control Unit
EMEL Edge Mounted Emergency Light
EMER Emergency
EMI Electromagnetic Interference
EMISN Emission
EMLG Enhanced Main Landing Gear
EMP Electric Motor Pump
EMU Engine Monitoring Unit
EMWS ElectroMechanical Window Shade
ENA Ethernet Network Adapter
ENCDR Encoder
END Endurance
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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ENEC Emergency Normal to Emergency Contactor

ENG Engine
ENM Electrical Network Management
ENMF Electrical Network Management Function
ENMS Electrical Network Management System
ENMU Electrical Network Management Unit
ENRM Ethernet Network Router Module
ENVMOD Envelope Modulation
EO Engine Out
EOS Electronic Overspeed System
EOSID Engine Out Standard Instrument Departure
EOT End of Tape
EP Entry Panel
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
EPR Engine Pressure Ratio
EPR.D EPR Descent
EPR.L EPR Latch
EPROM Erasable Programmable Read Only Memory
EPSU Emergency Power Supply Unit
EPU Emergency Power Unit
EQPT Equipment
ER Extended Range
ER Engineering Requirement
ERAI Emergency Ram Air Inlet
ERG Electromechanical Release Gate
ERMM En Route Moving Map
ERP Enhanced Runaway Protection
ERU Engine Relay Unit
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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ESB Electrical System BITE

ESBF Electrical System BITE Function
ESC Escape
ESD ElectroStatic Discharge
ESDN Extended System/Structure Description Note
ESEC Emergency Smoke/Evacuation Contactor
ESG Evolutive Security Gateway
ESMKTC Emergency Smoke Tie Contactor
ESN Electrical Structure Network
ESP Electrical Standard Practices
ESPM Electrical Standard Practices Manual
ESPU External Sources Protection Unit
ESS Essential
ESS Engine Section Stator
EST Estimated
ESTAC Emergency Static inverter AC Contactor
ESTC Emergency STatic inverter Contactor
ESU Ethernet Switch Unit
ET Elapsed Time
ETA Estimated Time of Arrival
ETACS External and Taxiing Aid Camera System
ETD Estimated Time of Departure
ETE Estimated Time En Route
ETHNET Ethernet
ETLC Emergency TR Line Contactor
ETO Estimated Time Over
ETOC Enhanced Takeoff Configuration
ETOPS Extended Range Operations for Two-Engine Aeroplanes
ETP Equal Time Point
ETP Equi-Time Point
ETRAC Electronic Thrust Reverser Actuation Controller
ETRAS Electrical Thrust Reverser Actuation System
ETSO European Technical Standard Order
ETT Estimated Time for Takeoff
EUAD European Union Airworthiness Directive
EUPB Electronic Unit Protection Box
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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EVAC Evacuate
EVAC Evacuation
EVMU Engine Vibration Monitoring Unit
EVS Enhanced Vision System
EWC Embedded Wireless Controller
EWD Engine/Warning Display
EWIS Electrical Wiring Interconnection System
EWS Electrical Window Shade
EX Example
EXC Excitation
EXC Excite
EXCESS Excessive
EXCHG Exchange
EXCHGR Exchanger
EXDLS External Door Locking System
EXH Exhaust
EXLCO EXterior Light Control
EXP Expansion
EXSTG Existing
EXT Exterior
EXT External
EXTING Extinguish
EXTING Extinguisher
EXTING Extinguishing
EXTN Extension
EXTNDD Extended
EXTR Extreme
EXTRACT Extraction
EXTRACT Extractor
F Fuel
F-G/S FLS Glide Slope
F-LOC FLS Localizer
F-PLN Flight Plan
F/C First Class
F/CTL Flight Controls
F/O First Officer
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F3D Full 3D
FA Course from a Fixed Waypoint to an Altitude Termination
FAC Flight Augmentation Computer
FADEC Full Authority Digital Engine Control
FAF Final Approach Fix
FAIL Failed
FAIL Failure
FAL Fuel Airworthiness Limitations
FANS Future Air Navigation System
FAP Flight Attendant Panel
FAP Forward Attendant Panel
FAR Federal Aviation Regulations
FAS Flight Augmentation System
FAS Final Approach Segment
FAV Fan Air Valve
FBB Fasten Bed Belt
FC Course from a Fixed Waypoint to a Changeover Point
FC Fuel Cell
FC Fully Closed
FC Functional Class
FCC Flight Control Computer
FCC Flight Control Contactor
FCC Fuel Cell Channel
FCD Fan Cowl Door
FCD Flight Crew Data
FCDC Flight Control Data Concentrator
FCGS Flight Control and Guidance System
FCGU Flight Control and Guidance Unit
FCMC Fuel Control and Monitoring Computer
FCMS Fuel Control Monitoring System
FCOM Flight Crew Operating Manual
FCPC Flight Control Primary Computer
FCRC Flight Crew Rest Compartment
FCRM Flight Control Remote Module
FCSC Flight Control Secondary Computer
FCTM Flight Crew Training Manual
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FCU Flight Control Unit

FCU Fuel Control Unit
FCV Flow Control Valve
FCZ Forward Core Zone
FD Course from a Fixed Waypoint to a DME Distance
FD Flight Director
FD Fuselage Datum
FDAC Full Digital AGU Controller
FDAU Flight Data Acquisition Unit
FDB Floor Disconnect Box
FDBK Feedback
FDC Fuel Data Concentrator
FDCE Flight Deck and Cabin Effects
FDD Floppy Disk Drive
FDDC Floppy Disk Drive Controller
FDE Flight Deck Effect
FDEP Flight Data Entry Panel
FDG Fan Drive Gearbox
FDIAF Flight Data Interface/Acquisition Function
FDIF Flight Data Interface Function
FDIMU Flight Data Interface and Management Unit
FDIU Flight Data Interface Unit
FDR Flight Data Recorder
FDRS Flight Data Recording System
FDS Fire Detection System
FDU Fire Detection Unit
FE Flight Envelope
FEDC Fire Extinguishing Data Converter
FEDR Feeder
FEGV Fan Exit Guide Vane
FEM Finite Element Model
FES Fire Extinguishing System
FEX Fire EXtinguishing
FF Fuel Flow
FFCCV Fan Frame Compressor Case Vertical
FFCCV Forward Flange Compressor Casing Vibration
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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FFCM Free Fall Control Module

FFSU Fixed Frequency Supply Unit
FG Flight Guidance
FGE Flight Guidance and Envelope
FGES Flight Guidance and Envelope System
FH Flight Hours
FIC Fan Intermediate Case
FIDS Fault Isolation and Detection System
FIFO First Input/First Output
FIG Figure
FILG Filling
FIM Fault Isolation Manual
FIN Functional Item Number
FIS Flight Information Services
FIS Fiber Splitter
FIX Fixed
FL Flight Level
FLA Flight Lock Actuator
FLD Field
FLD Floor Level Display
FLE Fixed Leading Edge
FLEX Flexible
FLP Flap
FLR Floor
FLS FMS Landing System
FLS Field Loadable Software
FLSCU Fuel Level Sensing Control Unit
FLT Flight
FLTR Filter
FLXTO Flexible Take-Off
FM Course from a Fixed Waypoint with a Manual Termination
FM Flight Management
FM Flight Manual
FM Frequency Modulation
FM Fault Message
FMA Flight Mode Annunciator
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FMC Flight Management Computer

FMCS Flight Management Computer System
FME Flow Metering Equipment
FMEA Failure Mode & Effects Analysis
FMGC Flight Management and Guidance Computer
FMGC-E Flight Management and Guidance Computer for E-Rudder
FMGEC Flight Management Guidance and Envelope Computer
FMGES Flight Management Guidance and Envelope System
FMGS Flight Management and Guidance System
FML Fiber Metal Laminate
FMS Flight Management System
FMST Flight Management System Trainer
FMU Fuel Metering Unit
FMV Fuel Metering Valve
FNCP Flight Navigation Control Panel
FNL Final
FNSG Flight Navigation Symbol Generator
FO Fully Open
FOB Fuel On Board
FOC Fuel/Oil Cooler
FOCT Flight Operations Consultation Tool
FOD Foreign Object Damage
FOHE Fuel/Oil Heat Exchanger
FOMAX Flight Operations and MAintenance eXchanger
FOVE Flight Operations Versatile Environment
FOd Foreign Object Debris
FPA Flight Path Angle
FPEEPMS Floor Proximity Emergency Escape Path Marking System
FPF Fire Protection Function
FPH Floor Panel Heating
FPM Floor Path Marking
FPMU Fuel Properties Measurement Unit
FPPU Feedback Position Pick-off Unit
FPRM Fuel Pipe Repair Manual
FPS Fire Protection System
FPT Flight Path Target
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FPV Flight Path Vector

FQ Fuel Quantity
FQDC Fuel Quantity Data Concentrator
FQI Fuel Quantity Indicating/Indication/Indicator
FQIC Fuel Quantity Indication Computer
FQIS Fuel Quantity Indicating System
FQMS Fuel Quantity and Management System
FR Frame
FREQ Frequency
FRM Fault Reporting Manual
FRS Flammability Reduction System
FRU Frequency Reference Unit
FRV Fuel Return Valve
FS Front Spar
FSA FlySmart with Airbus
FSA-NG FlySmart with Airbus-New Generation
FSB Fasten Seat Belts
FSCM Federal Supply Code for Manufacturers
FSH Full Screen Height
FSN Fleet Serial Number
FSOV Fire ShutOff Valve
FSS Front Secondary Structure
FSTD Flight Simulation Training Devices
FTE Fixed Trailing Edge
FTG Fitting
FTI Flight Test Installation
FTIS Fuel Tank Inerting System
FTSP Floor Temperature Setting Panel
FTU Force Transducer Unit
FU Fuel Used
FUSLG Fuselage
FW Failure Warning
FWC Flight Warning Computer
FWCD Forward Cargo Door
FWD Forward
FWL Firewall
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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FWS Flight Warning System

G Green
G/S Glide Slope
GA Go-Around
GAD General Assembly Drawing
GAIN Electrical GAlley INsert equipment
GAIR General Assembly Inspection Report
GALY Galley
GAPCU Ground and Auxiliary Power Control Unit
GBAS Ground Based Augmentation System
GBF Ground Blowing Fan
GCR Generator Control Relay
GCS Global Communication Suite
GCU Generator Control Unit
GD&T Geometric Dimensioning and Tolerancing
GDD General Definition Drawing
GDE Guide
GDNC Guidance
GDO Ground Door Opening
GE General Electric
GEM Ground Equipment Manual
GEN Generator
GES Ground Earth Station
GFE Government Furnished Equipment
GFI Ground Fault Interruption
GFI Ground Fault Interrupter
GFLI Ground Fuel Level Indication
GFR Ground Fault Report
GFRP Glass Fiber Reinforced Plastic
GGBU Gear Guard Battery Unit
GGMU Gear Guard Main Unit
GGPCU Generator and Ground Power Control Unit
GGSU Gear Guard Sensor Unit
GLA Gust Load Alleviation
GLASU Galley Light Attendant Service Unit
GLC Generator Line Contactor
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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GLM Gyro Life Monitor

GLR Generator Line Relay
GLS GBAS Landing System
GLSSU GPS Landing System Sensor Unit
GLT Ground Leak Test
GMT Greenwich Mean Time
GNC Galley Network Controller
GND Ground
GNLU GNSS Navigation and Landing Unit
GNSS Global Navigation Satellite System
GOBO Graphical Optical Blackout
GP Group
GPCU Ground Power Control Unit
GPIRS Global Positioning and Inertial Reference System
GPM General Processing Module
GPRS General Packet Radio Service
GPS Global Positioning System
GPS Geometrical Product Specification
GPSSU Global Positioning System Sensor Unit
GPT Ground Programming Tool
GPU Ground Power Unit
GPWC Ground Proximity Warning Computer
GPWS Ground Proximity Warning System
GRA Geared Rotary Actuator
GRM Geometrical Reference Mock-up
GRP Geographic Reference Point
GRP Glass-Reinforced Plastic
GRU Ground Refrigeration Unit
GRVTY Gravity
GS Ground Speed
GSB Ground Service Bus
GSE Ground Support Equipment
GSHLD Glareshield
GSM Global System for Mobile Communication
GSP Ground Service Panel
GUI Graphical User Interface
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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GVI General Visual Inspection

GW Gross Weight
GWDU Galley Waste Disposal Unit
GWR General Working Rules
GYRO Gyroscope
H/W Hardware
H2 Hydrogen
HA Holding Pattern to an Altitude Termination
HARN Harness
HBCS High Bandwidth Connectivity System
HC Heater Circuit
HCS Humidification Control System
HCU Head Up Combiner Unit
HCU Hydraulic Control Unit
HDDA Hard Disk Drive Array
HDG Heading
HDG/S Heading Selected
HDL Handle
HDLG Handling
HDM HSDU Data Module
HDMI High-Definition Multimedia Interface
HDST Headset
HDWHL Handwheel
HEATG Heating
HEDS Head End Data Switch
HEGS Hydraulic Electrical Generating System
HELGA HLD and Enhanced Low Gain Antenna
HEPA High Efficiency Particulate Air
HERTO High Energy Rejected Takeoff
HES Head-End Switch
HES Head End Server
HESU Head-End Server Unit
HF High Frequency
HF Holding Pattern to a Fixed Waypoint
HFDR High Frequency Data Radio
HFEC High Frequency Eddy Current
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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HFP Heated Floor Panel

HGA High Gain Antenna
HHX Hydraulic Heat Exchanger
HI High
HID High Intensity Discharge
HIDS Host Intrusion Detection System
HL High Level
HLD High Power Amplifier/Low Noise Amplifier/Diplexer
HLD Hold
HLD High Lift Device
HLDR Holder
HLFC Hybrid Laminar Flow Control
HLL High Leak Logic
HLS High Lift System
HLTY Healthy
HM Holding Pattern with a Manual Termination
HMA Human Monitoring Application
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
HMI Human-Machine Interface
HMS Human Monitoring System
HMU Hydromechanical Metering Unit
HMU Hydromechanical Unit
HNDRL Handrail
HOR Hold Open Rod
HOT High Oil Temperature
HP High Pressure
HPA High Power Amplifier
HPC High Pressure Compressor
HPP Hardware Pin Programming
HPR High Power Relay
HPT High Pressure Turbine
HPTACC High Pressure Turbine Active Clearance Control
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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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
HRP Horizontal Reference Plane
HRR Heat Release Rate
HRU Highly Resistive Union
HS High Speed
HSD High Speed Data
HSDU High Speed Data Unit
HSI Horizontal Situation Indicator
HSMU Hydraulic System Monitoring Unit
HSMU Hydraulic System Management Unit
HSU HUD Sunvisor Unit
HTG Heating
HTR Heater
HUD Head-Up Display
HUDC Head Up Display Computer
HUMIDIF Humidification
HV High Voltage
HVDC High Voltage Direct Current
HVOF High Velocity Oxygen-Fuel
HVPS High Voltage Power Supply
HX Heat Exchanger
HXX Hydraulic Heat Exchanger
HYD Hydraulic
I/O Input/Output
I/P Input
I/P Intercept Point
I/P Intercept Profile
I4D Initial 4D
IAE International Aero Engines
IAF Initial Approach Fix
IAS Indicated Airspeed
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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IASC Integrated Air System Controller

IBIT Initiated BITE
IBLC Inter-Bus Line Contactor
IBR Integrally Bladed Rotor
IBU Integrated Ballast Unit
ICA Instructions for Continued Airworthiness
ICAO International Civil Aviation Organization
ICC Integrated Change Control
ICD Interface Control Document
ICP Inside Control Panel
ICP Integrated Control Panel
ICPS Integrated Control Panel System
ICU Isolation Control Unit
ICU IGGS Controller Unit
ICY Interchangeability
ICY-CS Interchangeability Compliance Sheet
ID Inside Diameter
ID Identification
IDENT Identification
IDENT Identifier
IDENT Identify
IDG Integrated Drive Generator
IDLS Internal Door Locking System
IDU Interactive Display Unit
IF Initial Fix
IFCC Integrated Flight Control Computer
IFE In-Flight Entertainment
IFEC In-Flight Entertainment Center
IFPA In-Flight Performance Application
IFPC Integrated Fuel Pump and Control
IFR Instrument Flight Rules
IFS Inner Fixed Structure
IGA Intermediate Gain Antenna
IGB Inlet Gear Box
IGDS Inert Gas Distribution System
IGGS Inert Gas Generation System
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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IGN Ignition
IGSC Inert Gas System Control
IGV Inlet Guide Vane
IGWI Integrated Galley Warming Insert
ILF Integrated Loading Facility
ILLUM Illumination
ILS Instrument Landing System
IM Inner Marker
IMA Integrated Modular Avionics
IMACS Information Management Aircraft-ground Communication System
IMCC Information Management Common Chassis
IMEI International Mobile Equipment Identity
IML Integration Maintenance Load
IMM Immediate
IMMR Integrated Multi Mode Receiver
IMR Interlock Monitoring Relay
IMSI International Mobile Subscriber Identity
IMU Inertial Measurement Unit
INB Inbound
INBD Inboard
INCR Increment
IND Indicator
INDEP Independent
INDG Indicating
INFO Information
INHIB Inhibit
INHIB Inhibited
INHIB Inhibition
INIT Initial
INIT Initialization
INOP Inoperative
INR Inner
INRTL Inertial
INS Inertial Navigation System
INST Instinctive
INST Instrument
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INSTL Installation
INSUL Insulate
INSUL Insulation
INSUL Insulator
INT Interior
INTCON Interconnection
INTCP Intercept
INTEG Integral
INTEG Integrally
INTERCOM Intercommunication
INTFC Interface
INTL Internal
INTLK Interlock
INTMD Intermediate
INTMT Intermittent
INTPH Interphone
INTRG Interrogate
INTRG Interrogator
INTRPT Interrupt
INV Inverter
IOM Input/Output Module
IP Intermediate Pressure
IP Internet Protocol
IPC Illustrated Parts Catalog
IPCOM Internet Protocol Communication
IPCU Ice Protection Control Unit
IPCV Intermediate Pressure Check Valve
IPD Illustrated Parts Data
IPDU Ice Protection Data Unit
IPPU Instrumentation Position Pick-off Unit
IPRAM Integrated Prerecorded Announcement Module
IPSM Intelligent Power Supply Module
IPTCC Intermediate Pressure Turbine Case Cooling
IR Inertial Reference
IRD Integrated Receiver Decoder
IRDC Interface Remote Data Concentrator
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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IRDM Integrated Receiver Decoder Module

IRP Integrated Refuel Panel
IRS Inertial Reference System
ISA International Standard Atmosphere
ISB Inspection Service Bulletin
ISDN Integrated Services Data Network
ISDN Integrated Services Digital Network
ISDPL Inadvertent Slide Deployment Prevention Light
ISIS Integrated Standby Instrument System
ISM Illumination Sensor Module
ISM In-Service Monitoring
ISO International Standardization Organization
ISOL Isolation
ISP Integrated Static Probe
ISP Internet Service Provider
ISPS In-Seat Power Supply
ISPSS In-Seat Power Supply System
ISPSU In-Seat Power Supply Unit
ITP In-Trail Procedure
IUL In-Use Light
IV Isolation Valve
IVASEB Integrated Video and Audio Seat Electronic Box
IVS Inertial Vertical Speed
IWDL Internal Wireless Data Link
JAM Jammed
JAM Jamming
JAR Joint Aviation Requirements
JEP Jeppesen
JFGW Jettison Final Gross Weight
JID Jeppesen Inflight Database
JITX Jeppesen Integrated Tool Kit X
JTSN Jettison
JUNCTN Junction
KANDU Ku/Ka-band Aircraft Networking Data Unit
KBD Keyboard
KCCU Keyboard and Cursor Control Unit
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KFS Kaspersky File System

KOZ Keep Out Zone
KPP Key Process Parameter
KRFU Ku/Ka-band Radio Frequency Unit
KU Keyboard Unit
L Left
L Length
L/G Landing Gear
L/HIRF Lightning/High Intensity Radiated Fields
LA Linear Accelerometer
LAA Latch Actuator
LAF Load Alleviation Function
LAILA LAvatory Interface and Light Adapter
LAMM Lights, Audio and Miscellaneous Module
LAN Local Area Network
LAO Lateral Air Outlet
LAT Lateral
LAT Latitude
LAV Lavatory
LBA Logical Bus Application
LBA Left Bottom Aft
LBC Local Booking Code
LBF Left Bottom Forward
LBP Left Bottom Plug
LBS L-Band System
LBU L-Band Unit
LC Line Contactor
LCA Life Cycle Assessment
LCD Liquid Crystal Display
LCDT Load Compressor Discharge Temperature
LCF Left Center Fuselage
LCH Latch
LCHD Latched
LCIT Load Compressor Inlet Temperature
LCN Load Classification Number
LCO Limit Cycle Oscillation
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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LCP Local Control Panel

LCS Light Cockpit SATCOM
LCTR Locator
LD Lower Deck
LD CAB Lower Deck Cabin
LD GALY Lower Deck Galley
LD LAV Lower Deck Lavatory
LDC Local Door Controller
LDCC Lower Deck Cargo Compartment
LDF Lower Deck Facilities
LDG Landing
LDM LED-Driver Module
LDMCR Lower Deck Mobile Crew Rest
LDPA LanDing Performance Application
LDS Laptop Docking Station
LDSF Lower Deck Surveillance Function
LDSS Lower Deck Surveillance System
LE Leading Edge
LED Light Emitting Diode
LEHGS Local Electro-Hydraulic Generation System
LEL Lower Explosive Limit
LEO Low Earth Orbit
LER Leading Edge Rib
LF Low Frequency
LFEC Low Fequency Eddy Current
LGA Low Gain Antenna
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
LGWSS Landing Gear Well Surveillance System
LH Left Hand
LH2 Liquid Hydrogen
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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LIB Loudspeaker and Indicator Box

LIM Limit
LIM Limitation
LIM Limiter
LIM Limiting
LIQD Liquid
LIS Localizer Inertial Smoothing
LKD Locked
LKG Locking
LKSHFT Lockshaft
LL Latitude/longitude
LLA Lavatory Light Adapter
LLS Liquid Level Sensor
LMES Loss of Main Electrical Supply
LMF Local Maintenance Function
LMP Left Middle Plug
LMS Leakage Measurement System
LNA Low Noise Amplifier
LNG Long
LNR Linear
LO Low
LOA Lock Actuator
LOC Localizer
LOCKG Locking
LONG Longitude
LONGL Longitudinal
LONGN Longeron
LOP Low Oil Pressure
LOPA Layout of Passenger Accommodations
LOS Lavatory Occupied Sign
LP Low Pressure
LPA Left Protocol Adapter
LPC Low Pressure Compressor
LPCNG LPC New Generation
LPM Local Power Management
LPMF Local Power Management Function
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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LPT Low Pressure Turbine

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
LPV Localizer Performance with Vertical Guidance
LR Limited Recline
LRE List of Radioactive and Hazardous Elements
LRI Line Replaceable Item
LRM Line Replaceable Module
LROPS Long Range Operations
LRU Line Replaceable Unit
LS Landing System
LS Loudspeaker
LS Low Speed
LSAP Loadable Software Aircraft Parts
LSB Least Significant Bit
LSB Lower Sideband
LSBM Load Secure Batch Media
LSC Load Signature Certificate
LSD Load Sensing Device
LSDS Load Sensing Drive Strut
LSI Large Scale Integrated/Integration/Integrator
LSI Loads Stress Interface
LSR Load Shedding Relay
LT Light
LTA Left Top Aft
LTD Limited
LTD PLT Lighted Plate
LTE Long Term Evolution
LTF Left Top Forward
LTG Lighting
LTM Livestock Transportation Manual
LTP Left Top Plug
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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LV Low Voltage
LVDS Low Voltage Differential Signaling
LVDT Linear Variable Differential Transducer
LVL Level
LVO Low Visibility Operations
LVP Low Visibility Procedure
LVR Lever
LVT Linear Voltage Transducer
LW Left Wing
LW Landing Weight
LWR Lower
LWSA Lavatory Water Supply Assy
M/L Mood Lighting
MAC Mean Aerodynamic Chord
MACT Module Application Configuration Table
MAF Maintenance Access Function
MAG Magnetic
MAG DEC Magnetic Declination
MAIN MUX Main Multiplexer
MAINT Maintenance
MAN Manual
MAS Modulated Air System
MAT Multi-purpose Access Terminal
MAX Maximum
MBN Metallic Bonding Network
MCA Major Component Assembly
MCA Maintenance Central Access
MCC Maintenance Control Center
MCCT Module Common Configuration Table
MCD Movable Class Divider
MCDL Master Configuration Deviation List
MCDU Multipurpose Control & Display Unit
MCE Motor Control Electronic
MCL Maximum Climb
MCP Master Control Panel
MCPU Motor Control and Protection Unit
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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MCSU Mechanical Crash Sensor Unit

MCT Maximum Continuous Thrust
MCTI Manufacturing Critical Item
MCU Master Control Unit
MCU Modular Concept Unit
MCU Motor Control Unit
MCUR Mean Cycle Between Unscheduled Removals
MD Main Deck
MDA Minimum Descent Altitude
MDC Massive Data Capitalization
MDCC Main Deck Cargo Compartment
MDCCU Massive Data Capitalization Control Unit
MDCD Main Deck Cargo Door
MDCLC Massive Data Capitalization Landscape Camera
MDCLS Main Deck Cargo Loading System
MDDU Multipurpose Disk Drive Unit
MDH Minimum Descent Height
MDL Module
MDR Multiregional DBS (Digital Broadcast System) Receiver
MDU Manual Drive Unit
MEAS Measurement
MEC Main Engine Control
MECH Mechanic
MECH Mechanical
MECH Mechanism
MED Medium
MEL Minimum Equipment List
MEO Middle Earth Orbit
MEP Main Executive Program
MES Main Engine Start
MET Meteorological
MEW Manufacturer's Empty Weight
MFA Memorized Fault Annunciator
MFD MultiFunction Display
MFG Manufacturing
MFP Maintenance Facility Planning
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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MFP MultiFunction Probe

MFR Manufacturer
MFRL Multifunctional Runway Light
MFS MultiFunction Sensor
MGB Main Gear Box
MGMT Management
MGY Master Geometry
MHE Magnetic Heading East
MHM Maintenance HMI Manager
MHN Magnetic Heading North
MHS Magnetic Heading South
MHW Magnetic Heading West
MI Magnetic Indicator
MIB Management Information Base
MIC Microphone
MICBAC Micro-System Bus Access Channel
MID Middle
MID Modification Information Document
MIDU Multi-Input Interactive Display Unit
MILA Mini Light Adapter
MIN Minimum
MIP Master Interphone Panel
MISC Miscellaneous
MKR Marker (radio) Beacon
MLA Maneuver Load Alleviation
MLAP Maintenance Laptop
MLB Maintenance LogBook
MLC Mood Lighting Controller
MLFAP Mood Lighting Flight Attendant Panel
MLG Main Landing Gear
MLGB Main Landing Gear Bay
MLI Magnetic Level Indicator
MLIH Magnetic Level Indicator Housing
MLS Microwave Landing System
MLW Maximum Landing Weight
MM Middle Marker
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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MMEL Master Minimum Equipment List

MMI Manual Magnetic Indicator
MMR Multi-Mode Receiver
MNFOLD Manifold
MOD Modification
MODLTR Modulator
MON Monitor
MON Monitored
MON Monitoring
MONMT Monument
MOR Modular Overceiling Rack
MORA Minimum Off Route Altitude
MORV Mixer Overpressure Relief Valve
MOS Metal Oxyde Semiconductor
MOT Motor
MOT Motorized
MPD Maintenance Planning Document
MPDS Mobile Packet Data Service
MPFAP Multi Purpose Flight Attendant Panel
MPU Modem Processor Unit
MPV Manifold Pressure Valve
MPaT Materials, Processes and Tests
MRB Maintenance Review Board
MRBR Maintenance Review Board Report
MRIU Main Rotating Interface Unit
MRT Minimum Remaining Thickness
MRW Maximum Ramp Weight
MSA Minimum Safe Altitude
MSB Most Significant Bit
MSD Mass Storage Device
MSDS Material Safety Data Sheet
MSG Maintenance Steering Group
MSG Message
MSI Maintenance Significant Item
MSL Mean Sea Level
MSL Maintenance System Load
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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MSM Monitoring System Module

MSN Manufacturer Serial Number
MSP Managed Service Provider
MSTR Master
MSU Media Server Unit
MSU Mode Selector Unit
MSU Motor Switching Unit
MSW Microswitch
MTBD Mean Time Between Defects
MTBF Mean Time Between Failures
MTBR Mean Time Between Removals
MTBUR Mean Time Between Unscheduled Removals
MTC Modulated Turbine Cooling
MTD Maintenance Training Device
MTG Mounting
MTI Multi Tank Indicator
MTO Maximum Take-Off
MTOGW Maximum Takeoff Gross Weight
MTOW Maximum Takeoff Weight
MTP Maintenance and Test Panel
MTR Manufacturing Tolerance Requirement
MTTF Mean Time to Failure
MTTR Mean Time to Repair
MTTUR Mean Time to Unscheduled Removal
MTW Maximum Taxi Weight
MU Management Unit
MUX Multiplex
MUX Multiplexer
MVDR Multiple VHF Data Radio
MVT Movement
MWLU Multidomain Wireless LAN Unit
MXR Mixer
MZFW Maximum Zero Fuel Weight
Modem Modulator-Demodulator
Modman Modem/Manager
N North
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N MOS Negative Metal Oxide Semiconductor

N/A Not Applicable
N/W Nose Wheel
N/WS Nose Wheel Steering
N1 Engine Fan Speed
N1 Low Pressure Rotor Speed
N1.D N1 Descent
N1.L N1 Latch
N2 High Pressure Rotor Speed
N2 Nitrogen
NAC Nacelle
NAC Nacelle Air Cooling
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
NASA National Aeronautics and Space Administration
NATS North American Telephone System
NAV Navigation
NAVAID Navigation Aid
NBCM Normal Brake Control Manifold
NBD Network Block Device
NBF Network BITE Function
NBPT No Break Power Transfer
NBSELV Normal Brake Selector Valve
NC Normally Closed
NCD No Computed Data
NCR NSS Communication Router
NCU NSS Control Unit
NCU Network Control Unit
NCV Nacelle Cooling Valve
ND Navigation Display
NDB Non-Directional Beacon
NDM Noise Definition Manual
NDT Non-Destructive Test
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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NEA Nitrogen Enriched Air

NEG Negative
NEO New Engine Option
NEOL Near End Of Life
NFC Near Field Communication
NFMS Network File Management Service
NFMS New Flight Management System
NFSI Non-Functional Standard Item
NGAC New Generation Air Chiller
NGV Nozzle Guide Vane
NHA Next Higher Assembly
NLG Nose Landing Gear
NMI Non Maskable Interrupt
NMS Noise Masking System
NMU Noise Masking Unit
NO Normal Operation
NO Normally Open
NORM Normal
NOVOLRAM Non-volatile Random Access Memory
NRW Net Recoverable Weight
NS No Smoking
NSA Norme Sud Aviation
NSCM NATO Supply Code for Manufacturers
NSDW Non Specific Design Work
NSI Non Standard Item
NSIU Nose Static Interface Unit
NSM Network Server Module
NSS Network Server System
NTF Non-Textile Floor covering
NTM Nondestructive Testing Manual
NTSC National Television System Committee
NTWK Network
NUM Numerical
NVM Non-Volatile Memory
NWS Nose Wheel Steering
No. Number
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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O Open
O/P Output
O2 Oxygen
OAMS Onboard Asynchronous Messaging Service
OANC Onboard Airport Navigation Computer
OANS Onboard Airport Navigation System
OAT Outside Air Temperature
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
OC Oceanic Clearance
OC Open Circuit
OC Overcurrent
OCCPD Occupied
OCCPNT Occupant
OCED Operator-Customized ECAM Database
OCM Outflow Valve Control Module
OCP Outside Control Panel
OCSM Outflow Valve Control and Sensor Module
OCU Outflow Valve Control Unit
OD Outside Diameter
ODM On-Board Data Manager
ODMS Oil Debris Monitoring System
ODR Operator Differences Requirement
ODR On-Demand Repository
ODSM Open world Data Storage Module
ODU Optical Display Unit
OEA Oxygen Enriched Air
OEB Operations Engineering Bulletin
OEW Operational Empty Weight
OF Overfrequency
OFDM Onboard Flight Data Monitoring
OFF/R Off Reset
OFMV Oil Flow Management Valve
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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OFP Operational Flight Program

OFST Offset
OFV Outflow Valve
OFW Outer False Work
OGV Outlet Guide Vane
OH Opposite Hand
OHDS OverHeat Detection System
OHDSL OverHeat Detection System Light
OHDU Overheat Detection Unit
OHSC Overhead Stowage Compartment
OHU Optical Head Unit
OIS Onboard Information System
OIT Oil Inlet Temperature
OIT Onboard Information Terminal
OK Correct
OM Outer Marker
OMS Onboard Maintenance System
OMT Onboard Maintenance Terminal
OMTS On-Board Mobile Telephony System
OOOI Out of the gate, Off the ground, On the ground, Into the gate
OOT Oil Outlet Temperature
OP Operational
OPER Operative/Operation/Operating
OPM Optical Module
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
OPT Option
OPTS Oleo Pressure and Temperature Sensor
OPU Overspeed Protection Unit
OPU Overvoltage Protection Unit
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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OPV Overpressure Valve

OQAR Optical Quick Access Recorder
ORT Owner Requirement Table
ORVD Overpressure Relief Valve with Dump Function
OS Operating System
OSCM Oxygen System Control and Monitoring
OSCU Oxygen System Control Unit
OSF Open world Server Function
OSFC Open world Server Function Cabinet
OSP Open Software Platform
OTSSU Outboard Transmission Speed Sensor Unit
OU Outlet Unit
OUT Outlet
OUTB Outbound
OUTBD Outboard
OUTFLW Outflow
OUTR Outer
OVBD Overboard
OVFL Overflow
OVHD Overhead
OVHT Overheat
OVLD Overload
OVPRESS Overpressure
OVRD Override
OVSP Overspeed
OVSTEER Oversteer
OVTEMP Overtemperature
OWD Open World Diode
OWD Overwing Door
OWS Open World Shell
OXY Oxygen
P Purple
P/B Pushbutton
P/BSW Pushbutton Switch
P/C Printed Circuit
P/C Premium Class
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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P/N Part Number

P/Y Premium Economy Class
PA Passenger Address
PADS Pneumatic Air Distribution System
PAMB Ambient Air Pressure
PARAM Parameter
PARK Parking
PAS Pitch Attitude Sensor
PATS Passenger Air-to-Ground Telephone System
PAX Passenger
PB Processing Board
PBD Place Bearing/Distance
PBE Protective Breathing Equipment
PBIT Power-Up Built-in Test
PBM Power Plant Build-up Manual
PBSELV Park Brake Selector Valve
PBSW Pushbutton Switch
PC Pack Controller
PC Personal Computer
PCB Printed Circuit Board
PCD Protection and Commutation Device
PCDM Primary Contactor Driver Module
PCDS Primary Contactor Driver System
PCE PreCooler Exchanger
PCM Power Conditioning Module
PCM Pulse Code Modulation
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
PCTI Performance Critical Item
PCU Passenger Control Unit
PCU Power Control Unit
PCU Power Controller Unit
PD Principle Diagram
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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PDB Performance Database

PDCS Power Distribution Control System
PDFU Pedal Damping and Friction Unit
PDI Power and Data Interface
PDL Portable Data Loader
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
PDT Probe Dual Temperature
PDU Power Drive Unit
PE HP Stage Air Pressure
PED Portable Electronic Device
PED Pedestal
PEDMU Primary Electrical Distribution Management Unit
PEF Pylon Extension Fairing
PEPDC Primary Electrical Power Distribution Center
PERF Performance
PERM Permanent
PERS Personal
PES Passenger Entertainment System
PESAR Passenger Entertainment System Audio Reproducer
PESC PES Controller
PESMMUX Passenger Entertainment System Main Mux
PF Pilot Flying
PF Power Factor
PF3D Primary Full Format Flight Display
PFA PERMIT FOR ALTERNATIVE
PFC Primary Flight Control
PFCS Primary Flight Control System
PFD Primary Flight Display
PFDB Power Floor Disconnect Box
PFIS Passenger Flight Information System
PFQ Preselected Fuel Quantity
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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PFR Post Flight Report

PFTU Pedal Feel and Trim Unit
PH Phase
PHARS Pretensioning Head Arc Reduction System
PHC Probe Heat Computer
PHMU Power Health Monitoring Unit
PHMU Prognostics and Health Management Unit
PHX Primary Heat Exchanger
PIESD Passenger Information and Entertainment Services Domain
PIM Programming and Indication Module
PIM Passive InterModulation
PIMBIT Passive InterModulation Built-In Test
PIN PROG Pin Programming
PIP Performance Improvement Package
PIPC Power Plant Illustrated Parts Catalog
PIREP Pilot Report
PISA Passenger Interface and Supply Adapter
PIU Passenger Information Unit
PKI Public Key Infrastructure
PKK Power Plant Kit
PL Plate
PLA Power Light Adapter
PLC Powerline Communication
PLCRD Placard
PLD Please Lock Door
PLSP Point Level Sensor Processor
PLU Power Locking Unit
PMA Permanent Magnet Alternator
PMAT Portable Multipurpose Access Terminal
PMC Power Management Control
PMC Power Management Controller
PMDB Production Management Data Base
PMG Permanent Magnet Generator
PMM Personalization Memory Module
PMP Pump
PMR Performance Maintenance Recorder
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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PMS Process and Material Specification

PMU Power Management Unit
PMUX Power Plant Multiplexer
PN Part Number
PNEU Pneumatic
PNF Pilot Non Flying
PNL Panel
PNR Part Number
PNTL Pintle
POB Pressure-Off Brake
POB Power-Off Brake
POD Push Open Device
PODD Passenger Owned Devices Domain
POM Point of Measurement
POR Point of Regulation
PORT Portable
POS Position
POT Potentiometer
POXIP Passenger Oxygen Indication Panel
PPE Personal Protective Equipment
PPMS Pilot Physiological Monitoring System
PPOS Present Position
PPSI Pre-Processed Signal Input
PPU Position Pick-off Unit
PR Pressure
PRAM Prerecorded Announcement and Music
PRB Probe
PRE-EMPT Pre-emptive
PREAMP Preamplifier
PRECOOL Precooler
PRED Prediction
PRED Predictive
PREREC Prerecorded
PRES POS Present Position
PRESEL Preselection
PRESEL Preselector
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PRESS Pressure
PRESS Pressurization
PRESS Pressurize
PREV Previous
PRI Priority
PRIM Primary
PRIM PRIMary System
PRIM PRIMary Computer
PRM Person with Reduced Mobility
PROC Procedure
PROCSR Processor
PROF Profile
PROG Program
PROG Programming
PROJ Projector
PROM Programmable Read Only Memory
PROT Protection
PROX Proximity
PRPHL Peripheral
PRR Power Ready Relay
PRSOV Pressure Regulating and Shut-Off Valve
PRSRZG Pressurizing
PRV Pressure Regulating Valve
PSA Passenger Service Adapter
PSB Power Supply Board
PSCU Proximity Switch Control Unit
PSD Protected Switch Device
PSDU Power Supply Decoupling Unit
PSIC Proximity Sensor Interface Card
PSIU Passenger Service Information Unit
PSM Pressure Sensor Module
PSS Passenger Services System
PSS Pressure Sub-System
PSSTR Preliminary Supplier Selection Technical Review
PSU Passenger Service Unit
PSU Power Supply Unit
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PT Point
PTC Positive Temperature Coefficient
PTFE Polytetrafluoroethylene
PTP Programming and Test Panel
PTR Push to Reset
PTT Push-to-Test
PTT Push-to-Talk
PTU Power Transfer Unit
PU Parts Usage
PU Pick Up
PU Processing Unit
PURS Purser
PVC Polyvinyl Chloride
PVI Paravisual Indicating
PVIS Passenger Visual Information System
PW Pratt & Whitney
PWCU Potable Water Control Unit
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
Q Pitch Rate
QAD Quick-Attach-Detach
QAM Quadrature Amplitude Modulation
QAR Quick Access Recorder
QAT Quadruple ARINC Transmitter
QCCU Quantity Calculation Control Unit
QD Quick Donning
QEC Quick Engine Change
QFRP Quartz Fiber Reinforced Plastic
QMU QAM Modulator Unit
QTY Quantity
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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R Red
R Right
R-LMF Right Side Local Maintenance Function
R-MAX Retrofit Maintenance Exchanger
R-OMS Right Side Onboard Maintenance System
R/C Rate of Climb
R/D Rate of Descent
R/I Radio/Inertial
R/I Removal/Installation
R/L Reading Light
R/T Radio Transmit
RA Radio Altimeter
RA Radio Altitude
RAAS Runway Awareness and Advisory System
RAC Rotor Active Clearance
RACA Ram Air Channel Actuator
RACC Rotor Active Clearance Control
RACSB Rotor Active Clearance Start Bleed
RAD Radio
RADIUS Remote Authentication Dial-In User Service
RADVR Random Access Digital Video Reproducer
RAI Ram Air Inlet
RAIMS Radio and Audio Integrating Management System
RALS Recording and Aircraft Locating System
RAM Random Access Memory
RAO Ram Air Outlet
RAT Ram Air Turbine
RATC Remote Air Traffic Control
RAU Remote Acquisition Unit
RB Resource BITE
RBA Right Bottom Aft
RBCU Remote Braking Control Unit
RBF Right Bottom Forward
RBP Right Bottom Plug
RBPU Rudder and Brake Pedal Unit
RBS Reverse Bleed System
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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RC Repetitive Chime
RCC Remote Charge Converter
RCC Remote Control Center
RCCB Remote Control Circuit Breaker
RCCBM RCCB Module
RCD RAAS Configuration Database
RCDR Recorder
RCDR-ELT-AIM Recorder ELT Aircraft Identification Module
RCF Right Center Fuselage
RCL Recall
RCP Reverse Current Protection
RCP Remote Control Panel
RCPT Receptacle
RCPTN Reception
RCS Radio Communication System
RCT Rear Center Tank
RCVR Receiver
RCVY Recovery
RCZ Rear Core Zone
RD Retro Drawing
RDC Remote Data Concentrator
RDL Resident Data Loader
RDU Receiver Decoder Unit
RDY Ready
READG Reading
RECIRC Recirculate
RECIRC Recirculation
RECONF Reconfiguration
RECT Rectifier
RED Reduction
REDCR Reducer
REDUND Redundancy
REF Reference
REFF Root End Fillet Fairing
REFUEL Refueling
REG Regulator
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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REGUL Regulation
REIC Reconfigurable ETOPS Isolation Contactor
REL Release
REL Reluctance
REM Representative Model
REP Repository
RES Resistance
RET Retract
RETRD Retracted
REV Reverse
REV Revise
REV Revision
REW Recoverable Empty Weight
RF Radio Frequency
RFC Request for Change
RFI Radio Frequency Interference
RFI Request for Information
RFID Radio Frequency Identification
RFU Radio Frequency Unit
RFW Request for Work
RGAU Rate Gyro and Accelerometer Unit
RH Right Hand
RHEO Rheostat
RHL Rudder Hinge Line
RIM Rear Interface Module
RIU Recorder Interface Unit
RIU Rotating Interface Unit
RLA Reverser Lever Angle
RLD Required Landing Distance
RLF Relief
RLY Relay
RMF Rear Mount Fairing
RMI Radio Magnetic Indicator
RMO Retrofit Modification Offer
RMP Radio and Audio Management Panel
RMP Radio Management Panel
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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RMT Remote
RNG Range
RNLG Reinforced Nose Landing Gear
RNP Required Navigation Performance
ROLR Roller
ROLS Remote Oil Level Sensor
ROM Read Only Memory
ROP Runway Overrun Protection
ROPS Runway Overrun Prevention System
ROT Runway Occupancy Time
ROTG Rotating
ROW Runway end Overrun Warning
RPA Right Protocol Adapter
RPCU Residual Pressure Control Unit
RPDR Reproducer
RPF Reporting Processing Function
RPF Rear Pylon Fairing
RPLNT Repellent
RPSA Rotating Pressure Sensing Assembly
RPTG Repeating
RPTR Repeater
RQRD Required
RR Rolls Royce
RRU Recorder Release Unit
RS Rear Spar
RSC Removable Structural Component
RSM Removable SIM Module
RST Reset
RSV Reserve
RSVR Reservoir
RTA Required Time of Arrival
RTA Right Top Aft
RTBC Refuel and Towing on Battery Contactor
RTC Return To Cabin
RTE Route
RTF Right Top Forward
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RTM Real Time Monitoring

RTM Receiver/Transmitter Module
RTN Return
RTNC Refuel and Towing on Normal Contactor
RTO Rejected TakeOff
RTOLW Regulatory TakeOff and Landing Weight
RTOW Regulatory TakeOff Weight
RTP Right Top Plug
RTR Router
RTRY Rotary
RTS Return to Seat
RTT Return To Tank
RTU Radar Transceiver Unit
RTV Room Temperature Vulcanizing
RUD Rudder
RVCP Remote Video Control Panel
RVDT Rotary Variable Differential Transducer
RVR Runway Visual Range
RVSM Reduced Vertical Separation Minimum
RVT Rotary Variable Transformer
RW Right Wing
RWDS Rearwards
RWY Runway
RX Receive
S Minimum Slat Retract Speed (EFIS)
S South
S/C Step Climb
S/D Step Descent
S/MECH Shortening Mechanism
S/N Serial Number
S/W Software
SA Stress Analysis
SACL Stand Alone Content Loader
SACU Stand Alone Compensator Unit
SACU Semi-Automatic Control Unit
SAD Stress Analysis Data
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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SAE Society of Automotive Engineers

SAF Safety
SAF Sustainable Aviation Fuel
SAGB Step Aside GearBox
SAL System Address Label
SALSA Spot Array Light Supply Adapter
SAM Stress Analysis Manual
SAOHE Surface Air/Oil Heat Exchanger
SAR Smart ACMS Recorder
SARSAT Search and Rescue Satellite-Aided Tracking
SAS Secondary Air System
SAT Static Air Temperature
SATCOM Satellite Communication
SAV Starter Air Valve
SB Service Bulletin
SBAS Satellite Based Augmentation System
SBB Swift Broadband
SBE Service Bulletin Engine
SBIT Service Bulletin Information Transmission
SBP Standby Pitot Probe
SBSP Standby Static Probe
SBTU Speed Brake Transducer Unit
SC Single Chime
SCAV Scavenge
SCE Source
SCG System Configuration Guide
SCI Secure Communication Interface
SCM SDU Configuration Module
SCN Specification Change Notice
SCS Supplemental Cooling System
SCU Supplemental Control Unit
SCU System Control Unit
SCU Split Control Unit
SCV Surge Control Valve
SD System Display
SD Secure Digital
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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SDAC System Data Acquisition Concentrator

SDAC System Data Analog Converter
SDCP Smoke Detection Control Panel
SDCU Smoke Detection Control Unit
SDF Smoke Detection Function
SDI Source/Destination Identifier
SDI Special Detailed Inspection
SDIC Shut Down In Cruise
SDL Simple Data Loader
SDM Smart Diode Module
SDN System Description Note
SDOF Single Degree of Freedom
SDS Smoke Detection System
SDT Smart Dataloading Tool
SDU Satellite Data Unit
SDW Specific Design Work
SE Section
SEAL Sealing
SEB Seat Electronic Box
SEC Secondary
SEC SECondary Computer
SEC Spoiler Elevator Computer
SECT Section
SEL Select
SEL Selected
SEL Selection
SEL Selector
SELCAL Selective Calling
SELV Selector Valve
SEMR System Equipment Maintenance Requirements
SEPDC Secondary Electrical Power Distribution Center
SEQ Sequence
SEQ Sequential
SER Serial
SER Serial Number
SES Support Equipment Summary
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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SET Setting
SFAR Special Federal Aviation Regulation
SFC Specific Fuel Consumption
SFCC Slat Flap Control Computer
SFE Seller Furnished Equipment
SFTP Secured File Transfer Protocol
SG Starter Generator
SGCU Smart Galley Control Unit
SGCU Starter Generator Control Unit
SGSC Sheddable Ground Servicing Contactor
SGU Symbol Generator Unit
SGV Structural Guide Vane
SH ABS Shock Absorber
SHED Sheddable
SHED Shedding
SHLD Shield
SHLD Shielding
SHR PN Shear Pin
SHT Short
SHX Secondary Heat Exchanger
SI Slip Indicator
SIC System Isolation Contactor
SICU System Interface Control Unit
SID Standard Instrument Departure
SIG Signal
SIL Speech Interference Level
SIL Service Information Letter
SIM Simulation
SIM Subscriber Identity Module
SIR Service Identification Request
SIRU Secure Interface Router Unit
SIS Standalone Identification System
SITR System Installation Technical Reference
SIU Server Interface Unit
SKT Socket
SL ALI Safe Life Airworthiness Limitation Items
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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SLA Spot Light Adapter

SLC Starter Line Contactor
SLCA Streamlined Life Cycle Assessment
SLD Slide
SLD Sliding
SLS Satellite Landing System
SLT Slat
SM Standards Manual
SMC System Manager Controller
SMEL Seat-Mounted Emergency Light
SMK Smoke
SMKG Smoking
SMM System Management Module
SN Serial Number
SNGL Single
SNMP Simple Network Management Protocol
SNR Signal-to-Noise Ratio
SNSG Sensing
SNSR Sensor
SO Shutoff
SOL Solenoid
SOMF Structural Overload Monitoring Function
SOV Shut-Off Valve
SPB Seat Power Box
SPC Smart PCMCIA Card
SPD Speed
SPDB Secondary Power Distribution Box
SPEC Specification
SPIB Spare Parts Introduction Bulletin
SPKR Speaker
SPL Sound Pressure Level
SPLR Spoiler
SPLY Supply
SPM Signal Processing Module
SPM Standard Practices Manual
SPP Software Pin Programming
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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SPP-BA SPP Broadcasting Application

SPPU Station Position Pick-off Unit
SPR Spar
SPRDR Spreader
SPS Seat Power Supply
SPSS Seat Power Supply System
SPST Single Pole Single Throw
SPTL Software Pedal Travel Limitation
SPU Starter Power Unit
SQ Squelch
SRF Servicing and aircraft condition parameters Reporting Function
SRI aircraft Structural Repair Identification
SRM Structural Repair Manual
SRPS Safe Redundant Power Supply
SRPSU Slide Release Power Supply Unit
SRPU Safe Redundant Power Unit
SRS Speed Reference System
SRTL Software Rudder Travel Limitation
SRU Shop Replaceable Unit
SSA Side Slip Angle
SSB Single Side Band
SSCVR Solid State Cockpit Voice Recorder
SSD Solide State Drive
SSEC Static Source Error Correction
SSFDR Solid State Flight Data Recorder
SSID Service Set Identifier
SSM Sign Status Matrix
SSMM Solid State Mass Memory
SSP System Signal Processor
SSPC Solid State Power Controller
SSTDU Side Stick Transducer and Damper Unit
SSTU Side Stick Transducer Unit
SSU Side Stick Unit
STA Station
STAB Stabilizer
STAR Standard Terminal Arrival Route
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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STAT Static
STBY Standby
STC Supplemental Type Certificate
STD Standard
STELLA STair Electrical Light Load Adapter
STEP Synchronized Targeted Embodiment Point
STGR Stringer
STL System Torque Limiter
STR Stringer
STR Specific Tolerance Requirement
STRG Steering
STRK Stroke
STRM Secure open and Trip Resident Memory
STS Status
STWG Stowage
SUCT Suction
SUPPL Supplementary
SUPPR Suppressor
SURF Surface
SV Servovalve
SVA Stator Vane Actuator
SVA Servo Valve Assembly
SVCE Service
SVO Servo
SVS Synthetic Vision System
SW Switch
SWTG Switching
SYNC Synchro
SYNC Synchronize
SYNTHR Synthetizer
SYS System
SigDB Signature Database
SyDMP System Design Modification Plan
SyDPAP System Development and Process Assurance Plan
SyFAR System FAL Acceptance Review
SyFFR System First Flight Review
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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SyPDR System Preliminary Design Review

SyPR System Planning Review
T Trim
T True
T Turn
T-R Transmitter-Receiver
T.O TakeOff
T/C Top of Climb
T/D Top of Descent
T/F Track of a Fixed Waypoint
T/R Thrust Reverser
T/TISS Traffic and Terrain Integrated Surveillance System
T2C HP Compressor Inlet Temperature
T2CAS Traffic and Terrain Collision Avoidance System
T54 Low Pressure Turbine Inlet Temperature
TA Traffic Advisory
TAC Taxiing Aid Camera
TACAN Tactical Air Navigation
TACH Tachometer
TACS Taxiing Aid Camera System
TACT Tactical
TADD Trim Air Drive Device
TAS True Airspeed
TASE Training Areas of Special Emphasis
TAT Total Air Temperature
TAWS Terrain Awareness and Warning System
TB Terminal Block
TBC To Be Confirmed
TBO Time Between Overhauls
TBV Transient Bleed Valve
TC HP Turbine Case Pressure
TC Theoretical Contour
TC Thermocouple
TCA Throttle Control Assy
TCAF Turbine Cooling Air Front
TCAM Turbine Cooling Air Middle
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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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
TCF Turbine Center Frame
TCG Time Corrected Gain
TCIU Telephone Communication Interface Unit
TCM Thrust Control Malfunction
TCMA Thrust Control Malfunction Accommodation
TCP Transmission Control Protocol
TCS Temperature Control System
TCS Terminal Control Software
TCU Throttle Control Unit
TCU Transport Cargo Unit
TCV Thermal Control Valve
TDB Terrain DataBase
TDC Top Dead Center
TDS Technical Data Sheet
TE HP Stage Air Temperature
TE Trailing Edge
TEC Turbine Exhaust Case
TED Tool and Equipment Drawing
TEFO Total Engine Flame Out
TEI Tool and Equipment Index
TELECOM Telecommunications
TEM Tool and Equipment Manual
TEMP Temperature
TEO Engine Oil Temperature
TER Trailing Edge Rib
TFTS Terrestrial Flight Telephone System
TFU Technical Follow-up
TGB Transfer Gearbox
TGCU Terminal GPRS / UMTS Client Unit
TGT Target
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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TGT Turbine Gas Temperature

THD Total Harmonic Distortion
THERAP Therapeutic
THR Thrust
THRM Thermal
THRMST Thermostat
THROT Throttle
THROT PUSH Throttle Pusher
THRSH Threshold
THS Trimmable Horizontal Stabilizer
THSA Trimmable Horizontal Stabilizer Actuator
TIC Turbine Impingement Cooling
TIC Turbine Intermediate Case
TIS-B Traffic Information Service - Broadcast
TIT Turbine Inlet Temperature
TIU Terminal Interface Unit
TIV Temperature Isolation Valve
TK Tank
TKE Track Angle Error
TLA Throttle Lever Angle
TLC TR Line Contactor
TLCS Trolley Lift & Conveyance System
TLM Taxiway Landing Monitor
TLS Transcowl Locking System
TLS Trolley Lift System
TLU Travel Limitation Unit
TLV Tertiary Lock Valve
TM Torque Motor
TM Transportability Manual
TMC Test Means Component
TMG Tooling Master Geometry
TMLB Technical and Maintenance LogBook
TMR Timer
TMS Thermal Management System
TOGA Takeoff/Go Around
TOGW Takeoff Gross Weight
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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TOIL Toilet
TOL Tolerance
TOM Takeoff Monitoring
TOMCONF Take-Off Multi Configuration
TOPA TakeOff Performance Application
TOS TakeOff Securing
TOT Total
TOW Takeoff Weight
TPIC Tire Pressure Indicating Computer
TPIS Tire Pressure Indicating System
TPR Turbofan Power Ratio
TPS Temporary Protection System
TPU Terminal Processor Unit
TR Thrust Reverser
TR Transformer Rectifier
TR Transistor
TRA Throttle Resolver Angle
TRANS Transition
TRANSLG Translating
TRAS Thrust Reverser Actuation System
TRC Thrust Rating Computer
TRDV Thrust Reverser Directional Valve
TRF Turbine Rear Frame
TRGT Target
TRIG Trigger
TRK Track
TRLY Trolley
TROPO Tropopause
TRP Thrust Rating Panel
TRPU Thrust Reverser Power Unit
TRPV Thrust Reverser Pressurizing Valve
TRQE Torque
TRV Travel
TS TCU Sensor
TSA Throttle Sensor Angle
TSAS Temperature Secondary Air System
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
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A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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TSD Trouble Shooting Data

TSF Trouble Shooting Function
TSFC Thrust Specific Fuel Consumption
TSM Trouble Shooting Manual
TSP Tank Signalling Processor
TSPA Tank Signal Processor A
TSPB Tank Signal Processor B
TSU Torque Sensor Unit
TT Trim Tank
TTI Tune Test Inhibit
TTL Transistor Transistor Logic
TTOL Taxi, Takeoff and Landing
TTS Trim Tank System
TTWS Tail Tipping Warning System
TU Tapping Unit
TUCD Thermostat Unit Control Device
TURB Turbine
TURB Turbulence
TURB Turbulent
TV Television
TVBC Turbine Vane and Blade Cooling
TWDC Tank Wall Data Concentrator
TWLU Terminal Wireless LAN Unit
TX Transmit
TYP Typical
U/FLOOR Underfloor
U/S Unserviceable
UADF User Application Definition File
UAMM Unreliable Airspeed Mitigation Means
UAT Universal Access Transceiver
UD Upper Deck
UDCC Upper Deck Cargo Compartment
UDCD Upper Deck Cargo Door
UDP User Datagram Protocol
UEB Underseat Electronic Box
UERF Uncontained Engine Rotor Failure
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
CUSTOMIZATION AIRCRAFT TYPES DOCTYPES REVISION DATE REVISION NUMBER TITLE
A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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Print date: 2024-09-26 04:53:26

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
ULLI Understep LED Light
ULR Ultra Long Range
UMS User Modifiable Software
UMTS Universal Mobile Telecommunications System
UNBAL Unbalance
UNBAL Unbalanced
UND Under
UNDERPRESS Underpressure
UNIV Universal
UNLK Unlock
UNLKD Unlocked
UPLK Uplock
UPLKD Uplocked
UPPR Upper
UPR Upper
USB Universal Serial Bus
USB Upper Sideband
UTC Universal Time Coordinated
UV Ultra-Violet
UV Under Voltage
UWBS Universal Wireless Backbone System
V Valve
V/S Vertical Speed
VAC Voltage Alternating Current
VACU Vacuum
VAFN Variable Area Fan Nozzle
VAR Variable
VAR Variation
VBV Variable Bleed Valve
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
CUSTOMIZATION AIRCRAFT TYPES DOCTYPES REVISION DATE REVISION NUMBER TITLE
A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
TAIL NUMBER - MSN - FSN:
Print date: 2024-09-26 04:53:26

VC Ventilation Controller
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
VCU Video Control Unit
VDAR Virtual DAR
VDC Voltage Direct Current
VDEV Vertical Deviation
VDHM Variable Displacement Hydraulic Motor
VDL VHF Data Link
VDR VHF Data Radio
VDU Video Display Unit
VE Virtual Equipment
VEL Velocity
VENT Ventilation
VERT Vertical
VFG Variable Frequency Generator
VFR Visual Flight Rules
VG Vertical Gyro
VG Ground Terminal Module
VGM Versatile Graphical Module
VHCU Versatile Heating Control Unit
VHDU Versatile Heating Data Unit
VHF Very High Frequency
VHV Very High Voltage
VIB Vibration
VIGV Variable Inlet Guide Vane
VIMU Video Multiplexer Unit
VL Virtual Link
VLF Very Low Frequency
VLS Lowest Selectable Speed
VLV Valve
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
CUSTOMIZATION AIRCRAFT TYPES DOCTYPES REVISION DATE REVISION NUMBER TITLE
A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
TAIL NUMBER - MSN - FSN:
Print date: 2024-09-26 04:53:26

VM Voltmeter
VM Virtual Machine
VMU Video Modulator Unit
VN Grounding Point
VNSU Versatile Network Server Unit
VOD Video On Demand
VODDSU VOD Data Server Unit
VODMU VOD Modulator Unit
VODSU VOD Server Unit
VOL Volume
VOR VHF Omnidirectional Range
VORV Variable Oil Reduction Valve
VOZC Volatile Organic and Ozone Converter
VPN Virtual Private Network
VQAR Virtual QAR
VR Rotation Speed
VRU Video Reproducer Unit
VSB Vendor Service Bulletin
VSC Vacuum System Controller
VSCF Variable Speed Constant Frequency
VSEB Video Seat Electronic Box
VSI Vertical Speed Indicator
VSV Variable Stator Vane
VSVA Variable Stator Vane Actuator
VSWR Voltage Standing Wave Ratio
VTP Vertical Tail Plane
VTR Video Tape Reproducer
VTS Vacuum Toilet System
VU Virtual Unit
VV Velocity Vector
W West
W White
WABSIC Wheel And Brake System Integrated Component
WACS Wireless Airport Communication System
WAI Wing Anti-Ice
WAP Wireless Access Point
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
CUSTOMIZATION AIRCRAFT TYPES DOCTYPES REVISION DATE REVISION NUMBER TITLE
A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
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Print date: 2024-09-26 04:53:26

WARN Warning
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
WD Warning Display
WD Wing Datum
WD Wiring Diagram
WDB Wall Disconnect Box
WDM Wiring Diagram Manual
WG Wire Group
WG Wing
WGD Windshield Guidance Display
WGDC Windshield Guidance Display Computer
WGDS Windshield Guidance Display System
WGL Wireless Ground Link
WHC Window Heat Computer
WHCU Wireless Heater Control Unit
WHL Wheel
WINDML Windmilling
WIP Wing Ice Protection
WIPCU Water Ice Protection Control Unit
WIPDU Water Ice Protection Data Unit
WIPS Wing Ice Protection System
WLAN Wireless Local Area Network
WLC Wing Lower Cover
WLDP Warning Light Display Panel
WLG Wing Landing Gear
WLIP Water Lines Ice Protection
WLIPS Water Lines Ice Protection System
WLM Wireless LAN Manager
WLU Wireless LAN Unit
WMEL Wall Mounted Emergency Light
WOJ Weight On Jacks
WOW Weight On Wheels
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
CUSTOMIZATION AIRCRAFT TYPES DOCTYPES REVISION DATE REVISION NUMBER TITLE
A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
TAIL NUMBER - MSN - FSN:
Print date: 2024-09-26 04:53:26

WPT Waypoint
WRCS Windshield Rapid Curing System
WRDC Wheel Remote Data Concentrator
WRG Wiring
WRK Work
WRK Working
WRP Weather Radar Processor
WS Wireless System
WSC Window Shade Controller
WSCS Wheel Steering Control System
WSCU Wireless System Control Unit
WSHLD Windshield
WSSG Warning System Symbol Generator
WT Weight
WTB Wing Tip Brake
WTR Water
WX Weather Mode (ND)
WXR Weather Radar
WoffW Weight off Wheels
X Cross
X Trans
X BLEED Crossbleed
X FEED Crossfeed
X LINE Crossline
X VALVE Cross Valve
X-TALK Cross-talk
XBAR Crossbar
XCHECK Crosscheck
XCVR Transceiver
XDCR Transducer
XFMR Transformer
XFR Transfer
XING Crossing
XLOAD Crossload
XLR Extra Long Range
XLTR Translator
© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.
CUSTOMIZATION AIRCRAFT TYPES DOCTYPES REVISION DATE REVISION NUMBER TITLE
A318 A319 A321 A320 ESPM 01-Aug-2024 50 LIST OF ABBREVIATIONS
TAIL NUMBER - MSN - FSN:
Print date: 2024-09-26 04:53:26

XMSN Transmission
XMTR Transmitter
XPDR Transponder
XWIND Crosswind
Y Yellow
Y/C Economy Class
Z Greenwich Mean Time
Z Zone
ZC Zone Controller
ZEA Zero Emission Aircraft
ZEHPPS Zero Emission Hydrogen Power Plant System
ZEROe ZERO Emission
ZFCG Zero Fuel Center of Gravity
ZFW Zero Fuel Weight
eADL enhanced Airborne Data Loader
eDLRB Enhanced Data Loading Routing Box
eMCO extended Minimum Crew Operations
hPFD harmonized Primary Flight Display
mCLEDU mini Cabin LED Unit
mEPSU mini Emergency Power Supply Unit

© AIRBUS S.A.S. ALL RIGHTS RESERVED. CONFIDENTIAL AND PROPRIETARY DOCUMENT.