| ACARS |
ARINC Communications Addressing and Reporting System |
| ACMP |
Alternating Current Motor Pump (Fuel :: Hydraulics) |
| ADF |
Automatic Directing Finder |
| ADIRS |
Air Data Inertial Reference System |
| ADIRU |
Air Data Inertial Reference Unit |
| AFCS |
Autoflight Control System |
| AFDS |
Autopilot/Flight Director System |
| AIDS |
Airborne Integrated Data System |
| AIL |
Aileron |
| ALT |
Altitude or Altimeter |
| AOA |
Angle of Attack |
| A/P |
Autopilot |
| APCS |
Autopilot Pitch Control Servo |
| APP |
Approach |
| APU |
Auxiliary Power Unit |
| ARINC |
Aeronautical Radio Inc. |
| ARR |
Arrival |
| ASA |
Autoland Status Annunciator |
| A/T |
Autothrottle |
| ATC |
Air Traffic Control |
| B/A |
Bank Angle |
| BAT |
Battery |
| B/CRS |
Back Course |
| BIT |
Built-In-Test |
| BITE |
Built-In-Test-Equipment |
| CAS |
Computed Airspeed |
| CDU |
Control Display Unit |
| CLB |
Climb (Thrust :: VNAV) |
| CMD |
Command |
| CON |
Continuous |
| CRS |
Course |
| CRZ |
Cruise |
| CSEU |
Control System Electronics Unit |
| CWS |
Control Wheel Steering |
| DADC |
Digital Air Data Computer |
| DEP |
Departure |
| DES |
Descent |
| DFDAU |
Digital Flight Data Acquisition Unit |
| DH |
Decision Height |
| DME |
Distance Measuring Equipment |
| D-TO |
Derated Takeoff |
| EADI |
Electronic Attitude Director Indicator |
| ECS |
Environmental Control System |
| EDHP |
Engine Driven Hydraulic Pump (aka: EDP) |
| E/E |
Electrical/Electronics |
| EFCU |
Elevator Feel and Centring Unit |
| EFIS |
Electronic Flight Instrument System |
| EGT |
Exhaust Gas Temperature |
| EHSI |
Electronic Horizontal Situation Indicator |
| EICAS |
Engine Indication and Crew Alerting System |
| EMHP |
Electric Motor Hydraulic Pump (aka: ACMP) |
| EPR |
Engine Pressure Ratio |
| FCC |
Flight Control Computer |
| F/D |
Flight Director |
| FLCH |
Flight Level Change |
| FMA |
Flight Mode Annunciator |
| FMC |
Flight Management Computer |
| FMCS |
Flight Management Computer System |
| FMS |
Flight Management System |
| FSAM |
Flap/Slat Accessory Module |
| FSEU |
Flap/Slat Electronics Unit |
| GA or G/A |
Go Around |
| G/S |
Glideslope |
| HDG |
Heading |
| HLD |
Hold (See: HDG HOLD) |
| HYD |
Hydraulic |
| IAS |
Indicated Airspeed |
| ILS |
Instrument Landing System |
| INTC |
Intercept |
| LNAV |
Lateral Navigation |
| LOC |
Localiser |
| LRU |
Line Replaceable Unit |
| LVDT |
Linear Variable Differential Transducer |
| M |
Mach |
| M/ASI |
Mach/Airspeed Indicator |
| MCDP |
Maintenance Control Display Panel |
| MCP |
Mode Control Panel |
| MMO |
Maximum Operating Mach |
| MMR |
Multi-Mode Receiver |
| PCA |
Power Control Actuator |
| PCU |
Power Control Unit |
| PDU |
Power Drive Unit |
| PRSOV |
Pressure Regulating Shut-Off Valve (See: Bleed Air Valve) |
| RA |
Radio Altitude or Radio Altimeter |
| RAT |
Ram Air Turbine |
| RCVR |
Receiver |
| RDMI |
Radio Distance Magnetic Indicator |
| REF |
Reference |
| RMI |
Radio Magnetic Indicator |
| RNAV |
Area Navigation |
| RTE |
Route |
| RVDT |
Rotary Variable Differential Transducer |
| SAT |
Static Air Temperature |
| SCM |
Spoiler Control Module |
| SG |
Symbol Generator |
| SID |
Standard Instrument Departure |
| SOV |
Shut-Off Valve |
| SPD |
Speed |
| SPM |
Stabiliser Position Module |
| STAB |
Stabiliser |
| STAR |
Standard Terminal Arrival Route |
| STCM |
Stabiliser Trim Control Module |
| TAS |
True Airspeed |
| TAT |
Total Air Temperature |
| TGT |
Target |
| TLA |
Throttle Lever Angle |
| TMC |
Thrust Management Computer |
| TMS |
Thrust Management System |
| TMSP |
Thrust Mode Select Panel |
| TO or T/O |
Takeoff |
| TOC |
Top of Climb |
| TOD |
Top of Decent |
| TRK |
Track |
| TRU |
Transformer/Rectifier Unit |
| VMO (Vmo) |
Maximum Operating Airspeed (Knots) |
| VNAV |
Vertical Navigation |
| VOR |
VHF Omni-directional Range |
| V/S |
Vertical Speed |
| WEU |
Warning Electronics Unit (See: Stall Warning) |
| XCVR |
Transceiver |
| XFMR |
Transformer |
| XMTR |
Transmitter |
| YDS |
Yaw Damper Servo |
| YSM |
Yaw Damper/Stabiliser Trim Module |
