| ACAS |
Airborne collision avoidance system |
| ADC |
Aerodrome controller |
| AIRPROX |
An occurrence in which two or more aircraft come into such
close proximity that a threat to the safety of the aircraft exists,
or may exist, in airspace where the aircraft are not subject to an
air traffic separation standard, or where separation is a pilot
responsibility |
| AGL |
Above ground level |
| ALERFA |
Alert phase |
| AMSL |
Above mean sea level |
| APU |
Auxiliary power unit |
| ARO |
Acts, Regs and Order |
| ASIR |
Air Safety Incident Report |
| ATC |
Air Traffic Control |
| ATIS |
Automatic terminal information service |
| ATS |
Air Traffic Services |
| ATSB |
Australian Transport Safety Bureau |
| AusSAR |
Australian Search and Rescue |
| AusFIC |
Australian Flight Information Centre |
| BOC |
Breakdown of Co-ordination |
| BOS |
Breakdown of Separation |
| CASA |
Civil Aviation Safety Authority |
| CAVOK |
Visibility, cloud and present weather better than prescribed
values or conditions |
| CENSAR |
Centralised SARTIME Database |
| CLAM |
Cleared Level Adherence Monitoring |
| CPDLC |
Controller Pilot Data Link Communications |
| CTA |
Control Area |
| CTR |
Control Zone |
| CTAF |
Common traffic advisory frequency |
| DETRESFA |
Distress phase |
| DME |
Distance Measuring Equipment |
| EGPWS |
Enhanced Ground Proximity Warning System |
| EICAS |
Engine Indicating and Crew Alerting System |
| ESIR |
Electronic Safety Incident Report |
| ETA |
Estimated time of arrival |
| ETD |
Estimated time of departure |
| FDR |
Flight data record |
| FIR |
Flight information region |
| FL |
Flight level |
| FMS |
Flight Management System |
| FTC |
Failure to Comply |
| ft |
Feet |
| ft/min |
Feet per minute |
| GAAP |
General Aviation Airport Procedures |
| GPWS |
Ground Proximity Warning System |
| HF |
High frequency |
| IAS |
Indicated air speed |
| INCERFA |
Uncertainty phase |
| IFR |
Instrument Flight Rules |
| ILS |
Instrument landing system |
| IMC |
Instrument meteorological conditions |
| kts |
Knots |
| LLZ |
Localiser |
| m |
Metres |
| MBZ |
Mandatory Broadcast Zone |
| NAIPS |
National Aeronautical Information Processing System |
| NDB |
Non Directional Beacon |
| NM |
Nautical mile |
| NOTAM |
Notice to Airmen |
| OASIS |
Occurrence Analysis and Safety Information System |
| OCTA |
outside controlled airspace |
| OKTA |
Eighths of sky cover |
| PAN |
radio code indicating uncertainty or alert |
| RA |
Resolution advisory |
| RFFS |
Rescue and fire fighting service |
| RIS |
Radar Information Service |
| RPM |
revolutions per minute |
| RVSM |
Reduced vertical separation minimum |
| SAR |
search and rescue |
| SARTIME |
Time search action required |
| SATCOM |
Satellite communication |
| SID |
Standard instrument departure |
| SMC |
Surface movement controller |
| SSR |
Secondary surveillance radar |
| STAR |
Standard arrival route |
| STCA |
Short Term Conflict Alert |
| TA |
Traffic advisory |
| TAAATS |
The Australian Advanced Air Traffic System |
| TAF |
Terminal Area Forecast |
| TCAS |
Traffic Alert and Collision Avoidance System |
| UHF |
Ultra high frequency |
| VCA |
Violation of controlled airspace |
| VEC |
Visual En-route Chart |
| VFR |
Visual flight rules |
| VHF |
Very high frequency |
| VMC |
visual meteorological conditions |
| VOR VHF |
Omni-directional Radio Range |
