aircraft proximity (AIRPROX) ;
serious difficulty resulting in a hazard to aircraft caused, for example, by:
runway incursion
obstruction on runway
faulty procedures
non-compliance with procedures, or
failure of ground facilities.
aircraft proximity. A situation in which, in the opinion of the pilot or the air traffic services personnel, the distance between aircraft, as well as their relative positions and speed, has been such that the safety of the aircraft involved may have been compromised. Aircraft proximity is classified as follows:
Risk of collision
The risk classification of aircraft proximity in which serious risk of collision has existed.
Safety not assured
The risk classification of aircraft proximity in which the safety of the aircraft may have been compromised.
No risk of collision
The risk classification aircraft proximity in which no risk of collision has existed.
Risk not determined
The risk classification of aircraft proximity in which insufficient information was available to determine the risk involved, or inconclusive or conflicting evidence precluded such determination.
AIRPROX
The code word used in an air traffic incident report to designate aircraft proximity.
Type |
Designation |
Air traffic incident |
Incident |
as a) above |
AIRPROX (aircraft proximity) |
as b) 1) above |
runway incursion |
as b) 2) above |
obstruction on runway |
as b) 3) and 4) above |
Procedure |
as b) 5) above |
Facility |
The Air Traffic Incident Report Form is intended for use: by a pilot for fling a report on an air traffic incident after arrival of for confirming a report made initially by radio during flight.
Note - The form, if available on board, may also be used in making an initial report in flight or as the format for the text of a message to be transmitted over the AFS network.
during flight, use the appropriate air to ground frequency for reporting an incident of major significance, particularly if it involves other aircraft, so as to ascertained immediately;
as promptly as possible after landing, submit a completed Air Traffic Incident Report Form
for confirming a report of an incident made initially as in a) above, or for making the initial report on such an incident if it had not been possible to report it by radio;
for reporting an incident which did not require immediate notification at the time of occurrence.
aircraft identification;
type of incident, e.g. aircraft proximity;
- 1. a) & b)
- 2. a), b), c), d), n)
- 3. a), b), c), i)
- 4. a), b)
miscellaneous: 1. e).
- Address :
Flight Standards Division
Civil Aviation Safety Authority
274 Gwahae-dong, Gangseo-gu, Seoul
Government Complex Building 5-603,
#94 Dasom 2-ro, Sejong City, 339-012
Republic of Korea
- Tel : 82-2-2669-6369
- Fax : 82-2-6342-7249