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AIRBUS ABBREVIATIONS
| A |
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A/BRK - Autobrake A/C - Aircraft A/P - Autopilot AP - Autopilot A/S - Airspeed A/SKID - Anti-skid A/THR - Auto Thrust AA - Airworthiness Authorities AAT - Aircraft Allocation Table AB - Abort ABCU - Alternate Braking Control Unit ABN - Abnormal ABV - Above AC - Alternating Current ACARS ARINC - Communication Addressing and Reporting System ACAS - Airbrone Collision Avoidance System ACCEL - Acceleration ACC - Active Clearance Control ACCU - Accumulator ACP - Audio Control Panel ACSC - Air Conditioning System Controller ACT - Additional Center Tank ADF - Automatic Direction Finder ADIRS - Air Data Inertial Reference System ADIRU - Air Data Inertial Reference Unit ADM - Air Data Module ADR - Air Data Reference ADS-B - Automatic Dependent Surveillance-Broadcast ADV - Advisory AEVC - Avionic Equipment Ventilation Controller AFM - Airplane Flight Manual AFS - Auto Flight System AGL - Above Ground Level AIDS - Aircraft Integrated Data System AIL - Aileron AIME - Autonomous Integrity Monitoring Extrapolation AIP - Attendant Indication Panel AIU - Audio Interface Unit ALT - Altitude ALTN - Alternate AMC - Acceptable Means of Compliance AMI - Airline Modifiable Information AMU - Audio Management Unit ANT - Antenna AOA - Angle of Attack AOC - Airline Operational Control APP - Approach APPR - Approach APPU - Assymetry Position Pick-off Unit APU - Auxiliary Power Unit AR - Authorization Required ARINC - Aeronautical Radio Incorporated ARN - Aircraft Registration Number ARP - Aerospace Recommended Practice ARPT - Airport ASAP - As Soon As Possible ASI - Air Speed Indicator ASP - Audio Selector Panel ATC - Air Traffic Control ATM - Air Traffic Management ATN - Aeronautical Telecommunications Network ATE - Automatic Test Equipment ATIS - Airbus Technical Information System ATS - Auto Thrust System ATSAW - Airbrone Traffic Situational Awareness ATSU - Air Traffic Service Unit ATT - Attitude AUTO - Automatic AVNCS - Avionics AWY - Airway |
| B |
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B/C - Back Course BARO - Barometric BAT - Battery BCL - Battery Charge Limiter BCDS - Bite Centralized Data System BCU - Backup Control Unit BDDV - Brake Dual Distribution Valve BITE - Built-In Test Equipment BIU - BITE Interface Unit BFE - Buyer Furnished Equipment BFO - Beat Frequency Oscillator BMC - Bleed Monitoring Computer BNR - Binary BRG - Bearing BRK - Brake BRT - Bright BSCU - Braking Steering Control Unit BTC - Bus Tie Contactor BTL - Bottle BTS - Bleed Temperature Sensor BUS - Busbar BUSS - Back Up Speed Scale |
| C |
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C/B - Circuit Breaker CB - Circuit Breaker C/L - Checklist CL - Checklist CAB - Cabin CAPT - - Captain, Capture CAS - Calibrated Airspeed CAT - Category CBMS - Circuit Breaker Monitoring System CCD - Cursor Control Device CDL - Configuration Deviation List CDLS - Cockpit Door Locking System CDSS - Cockpit Door Surveillance System CDU - Control Display Unit CF - Cost of Fuel CFDIU - Centralized Fault Display Interface Unit CFDS - Centralized Fault Display System CFP - Computerized Flight Plan CG - Center of Gravity CHAN - Channel CHG - Change CHK - Check CI - Cost Index CIDS - Cabin Intercommunication Data System CIDS-SDF - Cabin Intercommunication Data System - Smoke Detection Function CKPT - Cockpit CLB - Climb CLR - Clear CLSD - Closed CM1(2) - Crewmember 1 (left seat) or 2 (right seat) CM1 - Crewmember 1 (left seat) CM2 - Crewmember 2 (right seat) CMPTR - Computer CMS - Constant Mach Segment CMS - Centralized Maintenance System CNSU - Cabin Network Server Unit CO - Company CO RTE - Company Route COND - Conditioning CONF - Configuration CONT - Continuous CPC - Cabin Pressure Controller CPCU - Cabin Pressure Controller Unit CPDLC - Controller-Pilot Data Link Communication CRC - Continuous Repetitive Chime CRG - Cargo CRS - Course CRT - Cathode Ray Tube CRZ - Cruise CSAS - Conditioned Service Air System CSCU - Cargo Smoke Control Unit CSD - Constant Speed Drive CSM/G - Constant Speed Motor/Generator CSTR - Constraint CT - Cost of Time CTL - Control CTL PNL - Control Panel CTR - Center CVR - Cockpit Voice Recorder |
| D |
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DA - Drift Angle DAC - Digital to Analog Converter DAC - Double Annular Combustor DAR - Digital AIDS Recorder DC - Direct Current DCDU - Datalink Control and Display Unit DCL - Digital Cabin Logbook DDRMI - Digital Distance and Radio Magnetic Indicator DECEL - Deceleration DES - Descent DEST - Destination DET - Detection, Detector DFA - Delayed Flap Approach DFDR - Digital Flight Data Recorder DH - Decision Height DIR - Direction DIR TO - Direct To DISC - Disconnect DISCH - Discharge DIST - Distance DITS - Digital Information Transfer System DIV - Diverter DMC - Display Management Computer DME - Distance Measuring Equipment DMU - Data Management Unit (Aids) DN - Down DSDL - Dedicated Serial Data Link DTG - Distance To Go DTO - Derated Takeoff DU - Display Unit DU - Documentary Unit |
| E |
| EWD - Engine/Warning Display ECAM - Electronic Centralized Aircraft Monitoring ECAS - Emergency Cockpit Alerting System ECB - Electronic Control Box (APU) ECM - Engine Condition Monitoring ECON - Economic ECP - ECAM Control Panel ECS - Environmental Control System ECU - Engine Control Unit EDP - Engine-Driven Pump EEC - Electronic Engine Computer EFCS - Electronic Flight Control System EFIS - Electronic Flight Instruments System EFOB - Estimated Fuel On Board EGPWS - Enhanced Ground Proximity Warning System EGT - Exhaust Gas Temperature EIS - Electronic Instruments System EIU - Engine Interface Unit ELAC - Elevator Aileron Computer ELEC - Electrics ELT - Emergency Locator Transmitter ELEV - Elevator ELV - Elevation EMER - Emergency EMER GEN - Emergency Generator ENG - Engine EO - Engine-Out EOSID - Engine-Out Standard Instrument Departure EPE - Estimated Position Error (equal to EPU) EPR - Engine Pressure Ratio EPU - Emergency Power Unit EPU - Estimated Position Uncertainty (equal to EPE) EQPT - Equipment EROPS - Extended Range Operation ESS - Essential EST - Estimated ETA - Estimated Time of Arrival ETE - Estimated Time Enroute ETOPS - Extended Twin Operations ETP - Equal Time Point EVMU - Engine Vibration Monitoring Unit E/WD - Engine/Warning Display EXP - Expedite EXT - PWR External Power EXTN - Extension |
| F |
| F - Fuel FAA - Federal Aviation Administration FAP - Forward Attendant Panel F/C - Flight Crew F/O - First Officer FO - First Officer FAC - Flight Augmentation Computer FADEC - Full Authority Digital Engine Control System FAF - Final Approach Fix FAP - Forward Attendant Panel FAR - Federal Aviation Regulations FAV - Fan Air Valve FCDC - Flight Control Data Concentrator FCMS - Fuel Control and Monitoring System FCOM - Flight Crew Operating Manual FCU - Flight Control Unit FD - Flight Director FDGJ - Fan Drive Gear System FDIMU - Flight Data Interface and Management Unit FDIU - Flight Data Interface Unit FDU - Fire Detection Unit FEP - Final End Point FF - Fuel Flow FG - Flight Guidance FGC - Flight Guidance Computer F-G/S - FLS Glide Slope FIDS - Fault Isolation and Detection System FL - Flight Level FLHV - Fuel Lower Heating Value F-LOC - FLS Localizer FLP - Flap FLS - FMS Landing System FLT - Flight F/CTL - Flight Control FLT CTL - Flight Control FLXTO - Flexible Takeoff FM - Flight Management FMA - Flight Mode Annunciator FMGC - Flight Management and Guidance Computer FMGS - Flight Management and Guidance System FMS - Flight Management System FMV - Fuel Metering Valve FNL - Final FOB - Fuel On Board FOHE - Fuel Oil Heat Exchanger FOM - Figure Of Merit FPA - Flight Path Angle F-PLN - Flight Plan FPD - Flight Path Director FPPU - Feedback Position Pick-off Unit FPV - Flight Path Vector FQ - Fuel Quantity FQI - Fuel Quantity Indication FQIC - Fuel Quantity Indication Computer FQU - Fuel Quantity Unit FREQ - Frequency FRT - Front FRV - Fuel Return Valve FU - Fuel Used FWC - Flight Warning Computer FWD - Forward FWS - Flight Warning System |
| G |
| G/S - Glideslope GA - Go-Around GAPCU - Ground and Auxiliary Power Control Unit GBAS - Ground Based Augmentation System GCU - Generator Control Unit GDU - Group of Documentary Unit GEN - Generator GES - Ground Earth Station GLC - Generator Line Contactor GLS - GBAS Landing System GLS - GNSS Landing System GMT - Greenwich Mean Time GND - Ground GND TEMP - Ground Temperature GNSS - Global Navigation Satellite System GPCU - Ground Power Control Unit GPIRS - Global Positioning and Inertial Reference System GPS - Global Positioning System GPWS - Ground Proximity Warning System GRND - Ground GRP - Geographic Reference Point GRVTY - Gravity GS - Ground Speed GSM - Global System for Mobile Communication GW - Gross Weight |
| H |
| HC - Harness Connector HCU - Hydraulic Control Unit HDG - Heading HDG/S - Heading Selected HDL - Handle HF - High Frequency HI - High HLD - Hold HM - Holding Pattern with a Manual Termination HMU - Hydrau-Mechanical Unit HMS - Heat Management System HP - High Pressure HPA - Hectopascal HPC - High Pressure Compressor HPSOV - High Pressure Shut-off Valve HPT - High Pressure Turbine HPV - High Pressure Valve HUD - Head Up Display HUDC - Head Up Display Computer HYD - Hydraulic |
| I |
| I/O - Inputs/Outputs I/P - Input or Intercept Profile IAF - Initial Approach Fix IAS - Indicated Airspeed IATA - International Air Transport Association ICAO - International Air Transport Organization IDENT - Identification IDG - Integrated Drive Generator IFE - In Flight Entertainment IFPC - Integrated Fuel Pump and Control IFR - Instrument Flight Rules IGGS - Inert Gas Generation System IGN - Ignition INHIB - Inhibited ILS - Instrument Landing System IM - Inner Marker IMM - Immediate INB - Inbound INBO - Inboard INCREM - Increment IND - Indicator INIT - Initialization INOP - Inoperative INR - Inner INST - Instrument INTCP - Intercept INV - Inverter IP - Intermediate Pressure IPC - Intermediate Pressure Check valve IPPU - Instrumentation Position Pick-off Unit IR - Inertial Reference IRS - Inertial Reference System ISA - International Standard Atmosphere ISDU - Initial System Display Unit ISIS - Integrated Standby Instrument System ISOL - Isolation ISPSS - In Seat Power Supply System ITP - In-Trail Procadure |
| J |
| JAA - Joint Aviation Authorities JAR - Joint Aviation Requirements |
| K |
| L |
| L/G - Landing Gear LAF - Load Alleviation Function LAT - Lateral LAT - Latitude LAT REV - Lateral Revision LAV - Lavatory LCD - Liquid Crystal Display LCN - Load Classification Number LDA - Landing Distance Available OR Localizer Directional Aid L DEV - Lateral Deviation LDG - Landing LDS - Laptop Docking Station LED - Light Emiting Diode LEDU - List of Effective Documentary Units LEFCB - List of Effective Flight Crew Bulletins LEOEB - List of Effective Operations Engineering Bulletins LESS - List of Effective Section/Subsections LF - Low Frequency LGCIU - Landing Gear Control Interface Unit LGPIU - Landing Gear Position Indicator Unit LH - Left-Hand LIM - Limitation LIS - Localizer Inertial Smoothing LK - Lock LL - Latitude/Longitude LLS - Left-Line Select key LO - Low LOC - Localizer LONG - Longitude LP - Low Pressure LPC - Low Pressure Computer LPT - Low Pressure Turbine LRRA - Low Range Radio Altimeter LRU - Line Replaceable Unit LS - Loudspeaker LSK - Line Select Key LT - Light LTS - Load and Trim Sheet LVL - Level LVL/CH - Level Change LVR - Lever LW - Landing Weight |
| M |
| MABH - Minimum Approach Break-off Height MAC - Mean Aerodynamic Chord MAG - Magnetic MAG DEC - Magnetic Declination MAG VAR - Magnetic Variation MAINT - Maintenance MAN - Manual MAP - Missed Approach Point MAX - Maximum MAX CLB - Maximum Climb MAX DES - Maximum Descent MAX END - Maximum Endurance MC - Master Caution MCDU - Multipurpose Control and Display Unit MCT - Maximum Continuous Thrust MCU - Modular Concept Unit MDA - Minimum Descent Altitude MDDU - Multifunction Disk Drive Unit MDH - Minimum Descent Height MECH - Mechanic MEA - Minimum En Route Altitude MED - Medium MEL - Minimum Equipment List MFA - Memorized Fault Annunciator MGB - Main Gearbox MIN - Minimum MKR - Marker MLA - Maneuver Load Alleviation MLG - Main Landing Gear MLS - Microwave Landing System MLW - Maximum Landing Weight MM - Middle Marker MMEL - Master Minimum Equipment List MMO - Maximum Operating Mach MMR - Multi Mode Receiver MN - Mach number MORA - Minimum Off Route Altitude MP - Modification Proposal MRIU - Maintenance and Recording Interface Unit MSA - Minimum Safe Altitude MSG - Message MSL - Mean Sea Level MSU - Mode Selector Unit MTBF - Mean Time Between Failure MTOW - Maximum Takeoff Weight MZFW - Maximum Zero Fuel Weight |
| N |
| N/A - Not Applicable NA - Not Applicable N1 - Low Pressure Rotor Speed (in %) N2 - High Pressure Rotor Speed (in %) NACA - National Advisory Committee for Aeronautics NAI - Engin Nacelle Anti-Ice NAV - Navigation NAVAID - Navigation Aid NBPT - No Break Power Transfer NCD - Non Computed Data ND - Navigation Display NDB - Non Directional Beacon NLG - Nose Landing Gear NORM - Normal NPA - Non Precision Approach NW - Nosewheel NWS - Nosewheel Steering |
| O |
| O/P - Output OANS - On-board Airport Navigation System OAT - Outside Air Temperature OBRM - On Board Replaceable Module OEB - Operations Engineering Bulletin OFF/R - Off Reset OFST - Offset OIS - Onboard Information System OIT - Onboard Information Terminal OM - Outer Marker OP - Open OPP - Opposite OPS - Operations OPT - Optimum OUTB - Outbound OUTR - Outer OVBD - Overboard OVHD - Overhead OVHT - Overheat OVRD - Override OVSPD - Overspeed OXY - Oxygen |
| P |
| P/N - Part Number PN - Part Number PA - Passenger Address P-ALT - Profile Altitude PAX - Passenger PAR - Precision Approach Radar PBE - Portable Breathing Equipment PBN - Performance Navigation Based P-CLB - Profile Climb PCU - Power Control Unit P-DES - Profile Descent PDB - Performance Data Base PDU - Pilot Display Unit PERF - Performance PES - Passenger Entertainment System PF - Pilot Flying PFC - Porous Friction Course PFD - Primary Flight Display PHC - Probes Heat Computer P-MACH - Profile Mach PM - Pilot Monitoring PNF - Pilot Non Flying PNL - Panel POB - Pressure Off Brake POS - Position PPOS - Present Position PPU - Position Pick-off Unit PR - Pressure PRED - Prediction PRESS - Pressure, Pressurization PROC - Procedure PROC T - Procedure Turn PROF - Profile PROG - Progress PROTEC - Protection P-SPEED - Profile Speed PSL - Product Structure Level PSU - Passenger Service Unit PT - Point PTR - Printer PTT - Push To Talk PTU - Power Transfer Unit (Hydraulic) PVI - Paravisual Indicator PWR - Power PWS - Predictive Windshear System |
| Q |
| QAR - Quick Access Recorder QFE - Field Elevation Atmosphere Pressure QFU - Runway Heading QNE - Sea Level Standard Atmosphere Pressure (1013 hPa) QNH - Sea Level Atmosphere Pressure QRH - Quick Reference Handbook QT - Quart (US) QTY - Quantity |
| R |
| RR/I - Radio/Inertial RA - Radio Altimeter RA - Resolution Advisory RAAS - Runway Awareness and Advisory System RACC - Rotor Active Clearance Control RAD - Radio RAIM - Receiver Autonomous Integrity Monitoring RAT - Ram Air Turbine RATC - Remote ATC Box RCDR - Recorder RCL - Recall RCVR - Receiver REAC - Reactive REC - Recommended RED - Reduction REG - Regulation REL - Release REV - Reverse RH - Right-Hand RLSK - Right Line Select Key RMI - Radio Magnetic Indicator RMP - Radio Management Panel RNAV - Area Navigation RNG - Range ROP - Runway Overrun Protection ROPS - Runway Overrun Prevention System ROW - Runway Overrun Warning RNP - Required Navigation Performance RPM - Revolution Per Minute RPTG - Repeating RPCU - Residual Pressure Control Unit RPM - Revolution Per Minute RPTG - Repeating RQRD - Required RSV - Reserves RTA - Required Time of Arrival RTE - Route RTL - Rudder Travel Limit RTO - Rejected Takeoff RTOW - Regulatory Takeoff Weight RUD - Rudder RVSM - Reduced Vertical Separation Minimum RWY - Runway |
| S |
| S - South S/C - Step Climb S/D - Step Descent S/D - Shut Down S/F - Slats/Flaps S/N - Serial Number SN - Serial Number SAAAR - Special Aircrew and Aircraft Authorization Required SAC - Single Annular Chamber SAT - Static Air Temperature SATCOM - Satellite Communication SC - Single Chime SCP - Software Control Panel SD - System Display SDAC - System Data Acquisition Concentrator SDCU - Smoke Detection Control Unit SDF - Simplified Directional Facility SEC - Spoiler Elevator Computer SEL - Selector SFCC - Slat/Flap Control Computer SFE - Seller-Furnished Equipment SID - Standard Instrument Departure SIM - Simulation SLT - Slat SOP - Standard Operating Procedure SPD - Speed SPD LIM - Speed Limit SPLR - Spoiler SRS - Speed Reference System STAR - Standard Terminal Arrival Route STAT - Static STAT INV - Static Inverter STBY - Standby STD - Standard STEER - Steering STRG - Steering STS - Status SWTG - Switching SYNC - Synchronize SYS - System |
| T |
| T.O - Takeoff T/O - Takeoff TO - Takeoff T/C - Top of Climb T/D - Top of Descent TA - Traffic Advisory TAC - Taxiing Aid Camera TACAN - Tactical Air Navigation TACT - Tactical TAS - True Air Speed TAT - Total Air Temperature TAU - Time to intercept TAWS - Terrain Awareness and Warning System TBC - To Be Confirmed TBD - To Be Determined T2CAS - Traffic and Terrain Collision Avoidance System T3CAS - Traffic and Terrain Collision Avoidance System TCA - Turbine Cooling Air TCAS - Traffic Collision Alert System or Threat-Analysis/Collision Avoidance System TCM - Thrust Control Malfunction TDU - Temporary Documentary Unit TEMP - Temperature TFTS - Terrestrial Flight Telephon System TGT - Target THR - Thrust THS - Trimmable Horizontal Stabilizer TK - Tank TK - Track angle TKE - Track Angle Error TLA - Throttle Lever Angle TLU - Travel Limitation Unit TMR - Timer TOC - Table of Contents TOD - Takeoff Distance TOGA - Takeoff Go-Around TOGW - Takeoff Gross Weight TOR - Takeoff Run TOW - Takeoff Weight T-P - Turn Point TPIS - Tire Pressure Indicating System TR - Transformer Rectifier T-R - Transmitter-Receiver TRANS - Transition TRK - Track TROPO - Tropopause TRU - Transformer Rectifier Unit TRV - Travel TSM - Trouble Shooting Manual TTG - Time to Go TVMC - Minimum Control Speed Temperature TWY - taxiway |
| U |
| UFD - Unit Fault Data ULB - Underwater Locator Beacon UNLK - Unlock UP Up, - Upper USB - Universal Serial Bus UTC - Universal Coordinated Time |
| V |
| V/S - Vertical Speed V1 - Decision Speed V2 - Takeoff Safety Speed VAPP - Approach Speed VBV - Variable Bypass Valve VC - Calibrated airspeed VDEV - Vertical Deviation VEL - Velocity VERT - Vertical VERT REV - Vertical Revisor VFE - Maximum Speed for each Flap configuration VFEN - VFE Next VFTO - Final Takeoff Speed VHF - Very High Frequency VHV - Very High Voltage VIB - Vibration VIP - Vertical Intersection Point VLE - Maximum Landing Gear Extended Speed VLS - Lowest Selectable Speed VLV - Valve VM - Maneuvering Speed VMAX - Maximum Allowable Speed VMC - Visiual Meteorological Conditions VMCA - Minimum Control Speed in the Air VMCG - Minimum Control Speed on Ground VMCL - Minimum Control Speed at Landing VMIN - Minimum Operating Speed VMO - Maximum Operating Speed VMU - Minimum Unstick Speed VOR - VHF Omnidirectional Range VOR-D - VOR-DME VR - Rotation Speed VREF - Landing Reference Speed VSI - Vertical Speed Indicator VSV - Variable Stator Vane VU - Visual Unit |
| W |
| WAI - Wing Anti-Ice WARN - Warning WBm - Weight And Balance Manual WBs - Weight And Banlance System WBC - Weight and Balance Computer WBS - Weight and Balance System WGD - Windshield Guidance Display WHC - Window Heat Computer WNDW - Window WPT - Waypoint WSHLD - Windshield WT - Weight WTB - Wing Tip Brake WXR - Weather Radar |
| X |
| XBLD - Crossbleed XCVR - Transceiver XFR - Transfer XMTR - Transmitter XPDR - Transponder XTK - Crosstrack Error |
| Y |
| Z |
| ZFCG - Zero Fuel Center of Gravity ZFW - Zero Fuel Weight ZFWCG - Zero Fuel Weight Center of Gravity field Zp - Pressure Altitude |