In order to assist Operators of M-Registered aircraft, we have compiled a list of abbreviations.
A/C |
Aircraft |
ACFT |
Aircraft |
AAIB |
UK Air Accidents Investigation Branch |
AAIM |
Aircraft Autonomous Integrity Monitoring |
ABAS |
Aircraft Based Augmentation Systems |
AC |
Alternating Current |
ACAS |
Airborne Collision Avoidance System |
ACMI |
Aircraft, Crew, Maintenance, Insurance |
AD |
Airworthiness Directive |
ADD |
Allowable Deferred Defect |
ADF |
Automatic Direction Finder |
ADS-B |
Automatic Dependent Surveillance — Broadcast |
ADS-C |
Automatic Dependent Surveillance — Contract |
AED |
Automatic External Defibrillator |
AFIS |
Airborne Flight Information System |
AFM |
Airplane Flight Manual |
AGB |
Accessory Gearbox |
AGL |
Above Ground Level |
AIL |
Aileron |
AIRAC |
Aeronautic Information Regulation and Control |
AFM |
Aircraft Flight Manual |
AFTN |
Aeronautical Fixed Telecommunications Network |
AGL |
Above Ground Level |
AIC |
Aeronautical Information Circular |
AIP |
Aeronautical Information Publication |
AIS |
Aeronautical Information Service |
ALI |
Airworthiness Limitation Item |
ALoSP |
Acceptable Level of Safety Performance |
ALT |
Alternate/Altitude |
AMC |
ATC Microphone Check |
AMC |
Acceptable Means of Compliance |
AMM |
Aircraft Maintenance Manual |
AMO |
Approved Maintenance Organization |
AMOC |
Alternate Means Of Compliance |
AMP |
Approved Maintenance Programme |
AMSL |
Above Mean Sea Level |
ANO |
Air Navigation Order |
ANS |
Air Navigation Services |
ANSPs |
Air Navigation Service Providers |
AOA |
Angle of Attack |
AOC |
Air Operator's Certificate/ Aeronautical Operational Control |
AOG |
Aircraft on Ground |
AOM |
Aerodrome Operating Minima/ Aircraft Operating Manual |
AOMM |
Aircraft Outfitting Maintenance Manual |
AP or A/P |
Autopilot |
APM |
Airplane Personnality Module |
APP |
Approach |
APU |
Auxiliary Power Unit |
APV |
Approach (Procedure) with Vertical Guidance |
ARC |
Airworthiness Review Certificate |
ARP |
Airport (or Aerodrome) Reference Point |
ASC |
Aircraft Service Change |
ASCB |
Avionics Standard Communication Bus |
A/T |
Auththrottle |
ATA |
Air Transport Association |
ATC |
Air Traffic Control |
ATCO |
Air Traffic Controllers |
ATM |
Air Traffic Management |
ATN B1 |
Aeronautical Telecommunications Network Baseline 1 |
ATSU |
Air Traffic Services Unit |
ATS |
Air Traffic Service |
ATZ |
Aerodrome Traffic Zone |
AUTO |
Automatic |
AUX |
Auxiliary |
AWOPS |
All Weather Operations |
AWS |
Airworthiness Surveyor |
AWSc |
Airworthiness Section |
BATT |
Battery |
BITE |
Built-In Test Equipment |
BLD |
Bleed |
BoM |
Bill of Material |
BoS |
Bill of Sale |
BTB |
Back to Birth |
BTMS |
Brakes Temperature Monitoring System |
BRNAV |
Basic Area Navigation |
CAME |
Continuous Airworthiness Management Exposition |
CAMO |
Continuous Airworthiness Management Organization |
CAP |
UK CAA Civil Aviation Publication |
CAS |
Crew Alerting System |
CB |
Circuit Breaker |
CBT |
Computer Based Training |
CCD |
Cursor Control Device |
CDCCL |
Critical Design Configuration Control Limitations |
CDI |
Course Deviation Indicator |
CDL |
Configuration Deviation List |
CDU |
Control Display Unit |
CFIT |
Controlled Flight Into Terrain |
CG |
Centre of Gravity |
CKPT |
Cockpit |
CM |
Context Management |
CMA |
Continuous Monitoring Approach |
CMC |
Control Maintenance Computer |
CMF |
Communications Management Function |
CMM |
Component Maintenance Manual |
CNL |
Cancelled |
CoA |
Certificate of Airworthiness |
COMM |
Communication(s) |
CONT |
Control |
CoR |
Certificate of Registration |
COTS |
Commercial-Off-The-Shelf |
CP |
Conditions Precedent |
CPAM |
Cabin Pressure Acquisition Module |
CPCP |
Corrosion Prevention and Corrosion Protection |
CPCS |
Cabin Pressure Controller System |
CPDLC |
Controller–Pilot Data Link Communications |
CPT |
Captain |
CRM |
Cockpit Resource Management |
CRS |
Certificate of Release to Service |
CSN |
Cycles Since New |
CSP |
Communications Service Provider |
CSO |
Cycles Since Overhaul |
CSSV |
Cycles Since Shop Visit |
CTA |
Control Area |
CTR |
Control Zone |
CVR |
Cockpit Voice Recorder |
DA |
Decision Altitude |
D&B |
Dent and Buckle Chart |
DAU |
Data Acquisition Unit |
Dc |
Direct Current |
DCPC |
Direct Controller-Pilot Communications |
DISP |
Display |
DGR |
Dangerous Goods Regulations |
DH |
Decision Height |
DME |
Distance Measuring Equipment |
DOA |
Design Organization Approval |
DOW |
Dry Operational Weight |
DSP |
Datalink Service Provider |
DU |
Display Unit |
EAD |
Emergency Airworthiness Directive |
EASA |
European Aviation Safety Agency |
ECCAIRS |
European Coordination Centre for Accident & Incident Reporting Systems |
ECAM |
Electronic Centralised Aircraft Monitor |
ECM |
Electronic Control Mode |
ECS |
Environmental Control System |
ECU |
Electronic Control Unit |
EDP |
Engine Driven Pump |
EEA |
European Economic Area |
EEL |
Emergency Equipment List |
EFB |
Electronic Flight Bag |
EFIS |
Electronic Flight Instrument System |
EFVS |
Enhanced Flight Vision System |
EGPWS |
Enhanced Ground Proximity Warning System |
EGT |
Exhaust Gas Temperature |
EICAS |
Engine Instrument and Crew Alerting System |
ELT |
Emergency Locator Transmitter |
EO |
Engineering Order |
EOL |
End of Lease |
EPR |
Engine Pressure Ratio |
ER |
Extended Range |
ESN |
Engine Serial Number |
ESS |
Essential |
ETA |
Estimated Time of Arrival |
ETD |
Estimated Time of Departure |
ETOPS |
Extended-range Twin-engine Operational Performance Standards |
EVS |
Enhanced Vision System |
EW |
Empty Weight |
EWIS |
Electrical Wiring Interconnection System |
EXT |
External |
EZAP |
Enhanced Zonal Analysis Procedure |
FA |
Flight Attendant |
FAA |
Federal Aviation Administration |
FADEC |
Full Authority Digital Engine Control |
FAF |
Final Approach Fix |
FAK |
First Aid Kit |
FAP |
Flight Attendant Panel |
FBO |
Fixed-Based Operator |
FANS |
Future Air Navigation System |
FC |
Flight Cycle |
FCOM |
Flight Crew Operations Manual |
FD |
Flight Director / Flight Display |
FDD |
Flying Display Director |
FDM |
Flight Data Monitoring |
FDR |
Flight Data Recorder |
FFS |
Full Flight Simulator |
FGC |
Flight Guidance Computer |
FGS |
Flight Guidance System |
FH |
Flight Hours |
FIR |
Flight Information Region |
FL |
Flight Level |
FLCH |
Flight Level Change |
FLTA |
Forward Looking Terrain Avoidance |
FMS |
Flight Management System |
FO |
First Officer |
FOD |
Foreign Object Damage/Foreign Object Debris |
FOR |
Flight Operations Representative |
FOV |
Field of View |
FMC |
Flight Management Computer |
FPA |
Flight Path Angle |
FRQ |
Frequency |
FSTD |
Flight Simulation Training Devices |
FTE |
Flight Technical Error |
FTS |
Fuel Tank Safety |
FWD |
Forward |
GA |
General Aviation |
GBAS |
Ground Based Augmentation System |
GM |
Guidance Material |
GND |
Ground |
GNSS |
Global Navigation Satellite System |
GPS |
Global Positioning System |
GPU |
Ground Power Unit |
GPWS |
Ground Proximity Warning System |
GSE |
Ground Support Equipment |
HDG |
Heading |
HF |
High Frequency |
HFDL |
HF Data Link |
HFRS |
Heated Fuel Return System |
HMI |
Human/Machine Interface |
HP |
High Pressure |
HPC |
High Pressure Compressor |
HPL |
Horizontal Protection Level |
HPT |
High Pressure Turbine |
HT |
Hard Time |
HUD |
Head Up Display |
HYD |
Hydraulic |
HZ |
Hertz (circles per second) |
IAF |
Initial Approach Fix |
IAIP |
Integrated Aeronautical Information Package |
IAP |
Instrument Approach Procedure |
IAS |
Indicated Air Speed |
IATA |
International Air Transport Association |
IAW |
In Accordance With |
IB |
Inboard |
IBIS |
ICAO Birdstrike Information System |
ICA |
Instructions for Continued Airworthiness |
ICAO |
International Civil Aviation Organization |
IDERA |
Irrevocable De-Registration and Export Request Authorisation |
IFE |
In-Flight Entertainment (System) |
IFIS |
Integrated Flight Information System |
IFR |
Instrument Flight Rules |
IFSD |
In Flight Shutdown |
IGN |
Ignition |
IMC |
Instrument Meteorological Conditions |
IOM |
Isle of Man |
IOMAR |
Isle of Man Aircraft Registry |
IOSA |
IATA Operational Safety Audit |
ILS |
Instrument Landing System |
INHIB |
Inhibit |
INOP |
Inoperative |
INS |
Inertial Navigation System |
IPC |
Illustrated Parts Catalogue |
IRS |
Inertial Reference System |
IRU |
Inertial Reference Unit |
ISA |
International Standard Atmosphere |
KIAS |
Knots Indicated Airspeed |
LCC |
Low Cost Carrier |
LDG |
Landing |
LDND |
Last Done / Next Due |
LE |
Leading Edge |
LG |
Landing Gear |
LNAV |
Lateral Navigation |
LOA |
Letter of Acceptance |
LOI |
Letter of Intent |
LOPA |
Layout of Passenger Accommodations |
LOTC |
Loss of thrust or power control |
LLP |
Life Limited Part |
LNAV |
Lateral Navigation |
LP |
Localizer Performance |
LPC |
Low Pressure Compressor |
LPT |
Low Pressure Turbine |
LPV |
Localizer Performance with Vertical guidance |
LRNS |
Long Range Navigation Systems |
LRCS |
Long Range Communication Systems |
LRU |
Line Replaceable Unit |
LVO |
Low Visibility Operations |
LVTO |
Low Visibility Take-Off |
LW |
Landing Weight |
MAC |
Mean Aerodynamic Chord |
MAHP |
Missed Approach Holding Point |
MAS |
Missed Approach Segment |
MCDU |
Multifunction Control Display Unit |
MDA |
Minimum Decision/Descent Altitude |
MDH |
Minimum Decision/Descent Height |
MDDR |
Maintenance Deferred Defect Record |
MEL |
Minimum Equipment List |
METAR |
Aerodrome Routine Meteorological Report |
MFD |
Manufacture Date / Multi-function display |
MMEL |
Master Minimum Equipment List |
MNPS |
Minimum Navigation Performance Specification |
MOD |
Modification |
MOE |
Maintenance Organization Exposition |
MOPP |
Maintenance/Operational/Placarding Procedures |
MOR |
Mandatory Occurrence Report |
MPD |
Maintenance Planning Document |
MRB |
Maintenance Review Board |
MRO |
Maintenance and Repair Organization |
MSL |
Mean Sea Level |
MSN |
Manufacturer’s Serial Number |
MTOM |
Maximum Take-Off Mass |
MTOW |
Maximum Take-Off Weight |
MTWA |
Maximum Total Weight Authorised |
NAT HLA (MNPS) |
North Atlantic High Level Airspace (Minimum Navigation Performance Specification) |
NAA |
National Aviation Authority |
NAV |
Navigation |
NCC |
Non Commercial Operations with Complex Motor-Powered Aircraft |
NATR |
Nominated Airworthiness Technical Representative |
NAVAID |
Navigational Aid |
NavDB |
Navigation Database |
NCC |
Non-Commercial operations with Complex motor-powered aircraft |
NCO |
Non-commercial operations with other than complex-motor-powered aircraft |
NDT |
Non Destructive Testing |
NEF |
Non-Essential Equipment and Furnishings |
NIS |
Non Incident Statement |
NLG |
Nose Landing Gear |
NM |
Nautical Mile |
NOTAM |
Notice to Airmen |
NRC |
Non-Routine Card |
NQE |
National Qualified Entity (drone training organisation) |
NSE |
Navigation System Error |
NWS |
Nose Wheel Steering |
OB |
OutBoard |
O&M |
Operational and Maintenance |
OCCM |
On Condition/Condition Monitored components |
OEM |
Original Equipment Manufacturer |
OHM |
OverHaul Manual |
OJTI |
On the Job training Instructor |
OR |
Occurrence Report |
ORA |
Operational Risk Assessment |
OSD |
Operational Suitability Data |
PA |
Passenger Address |
PAN OPS |
Procedures for Air Navigation Services, Aircraft Operations |
PAX |
Passenger |
PBCS |
Performance Based Communication and Surveillance |
PBE |
Protective Breathing Equipment |
PBN |
Performance Based Navigation |
PDE |
Path Definition Error |
PED |
Portable Electronic Device |
PERF |
Performance |
PF |
Pilot Flying |
PFD |
Primary Flight Dispaly |
PIC |
Pilot in Command |
PIFCA |
Primary Instructions for Continuing Airworthiness |
PIREP |
Pilot Report |
PLB |
Personal Locator Beacon |
POA |
Power of Attorney |
POH |
Pilot’s Operating Handbook |
PM |
Pilot Monitoring |
PNF |
Pilot Not Flying |
PPR |
Prior Permission Required |
PPtA |
Person Presenting the Aircraft |
P-RNAV |
Precision-Area Navigation |
PSE |
Principal Structural Equipment |
PSR |
Primary Surveillance Radar |
PSU |
Passenger/Personal Service Unit |
PtF |
Permit To Fly |
PTU |
Power Transfer Unit |
PWR |
Power |
QA |
Quality Assurance |
QAR |
Quick Access Recorder |
QM |
Quality Manual |
QRH |
Quick Reference Handbook |
QTY |
Quantity |
RA |
Resolution advisory (ACAS/TCAS) |
RADAR |
Radio Detection and Ranging |
RAIM |
Receiver Autonomous Integrity Monitoring |
RAT |
Ram Air Turbine |
RCP |
Required Communication Performance |
REV |
Revision |
RIE |
Rectification Interval Extension |
RF |
Radius-to-Fix |
RFM |
Rotorcraft Flight Manual |
RNAV |
Area Navigation |
RNP |
Required Navigation Performance |
RNP AR |
Required Navigation Performance (Authorisation Required) |
RP |
Registry Publication |
RPAS |
Remotely Piloted Aerial Systems |
RSP |
Required Surveillance Performance |
RTS |
Return to Service |
RVR |
Runway Visual Range |
RVSM |
Reduced Vertical Separation Minima |
SAAAR |
Special Aircraft and Aircrew Authorization Required |
SARPS |
International Standards and Recommended Practices |
SATCOM |
Satellite Communication |
SATIS |
Satisfactory |
SATVOICE |
Satellite Voice |
SB |
Service Bulletin |
SBAS |
Satellite Based Augmentation System |
SELCAL |
Selective Calling |
SERA |
Standardised European Rules of the Air |
SIC |
Second in Command |
SID |
Standard Instrument Departure Route |
SIFCA |
Supplementary Instructions for Continuing Airworthiness |
SIGWX |
Significant weather chart |
SMS |
Safety Management System |
SN |
Serial Number |
SPECI |
Aerodrome Special Meteorological Report |
SPI |
Safety Performance Indicator |
SSP |
Satellite Service Provider / State Safety Programme |
SSR |
Secondary Surveillance Radar |
STAR |
Standard Arrival Route |
STBY |
Standby |
STC |
Supplementary Type Certificate |
SUA |
Small Unmanned Aircraft |
SUSA |
Small Unmanned Surveillance Aircraft |
SV |
Shop Visit / Serviceable |
SVR |
Shop Visit Report |
TAWS |
Terrain Awareness and Warning System |
TA |
Technical Acceptance / Traffic advisory (ACAS/TCAS) |
TAF |
Terminal Aerodrome Forecast |
TC |
Type Certificate / Total Cycles / Technical Consultant |
TCAS |
Traffic Collision Avoidance System |
TCCA |
Transport Canada |
TCDS |
Type Certificate Data Sheet |
TCO |
Third Country Operators |
TE |
Trailing Edge |
TLB |
Technical Log Book |
TO |
Take-off |
TOGA |
Take-off/Go-around |
TR |
Thrust Reverser |
TRAM |
Training Requirements Application Manual |
TSN |
Time Since New |
TSO |
Time Since Overhaul |
TSSV |
Time Since Shop Visit |
TT |
Total Time |
TTL |
Taxi Take-off and Landing |
UAS |
Unmanned Aerial Systems |
UAV |
Unmanned Aerial Vehicle |
UCS |
Unit Competency Scheme |
UHF |
Ultra High Frequency |
UKAB |
UK Airprox Board |
ULB |
Underwater Locator Beacon |
US |
Unserviceable |
USOAP |
ICAO Universal Safety Oversight Audit Programme |
UTC |
Universal Time Coordinated |
UTP |
Unit Training Plan |
VAAC |
Volcanic Ash Advisory Centre |
VDI |
Vertical Deviation Indicator |
VDL |
VHF Data Link |
VFR |
Visual Flight Rules |
VHF |
Very High Frequency |
VMC |
Visual Meteorological Conditions |
VNAV |
Vertical Navigation |
VOR |
Very High Frequency (VHF) Omni-Directional Range |
VREF |
Reference Speed (Knots) |
VS |
Stall Speed (Knots) |
W&B |
Weight & Balance |
WOW |
Weight on Wheels |
WX |
Weather |
XPDR |
Transponder |
X-REF |
Cross Reference |