Sunday, October 23, 2016

Air-ground Communication Failure Procedures

Share
As soon as it is known that two-way communication has failed, action shall be taken to ascertain whether the aircraft is able to receive transmission from the AERODROME CONTROL TOWER unit or not.
If it apparent that there is no response from the pilot to ATC instruction but AERODROME CONTROL TOWER is still able to read any transmission from the pilot, it indicates that the aircraft is experiencing receiver failure. In this situation AERODROME CONTROL TOWER shall take the following actions :
a) clear other aircraft to avoid the route and/or altitude to be flown by aircraft experiencing radio receiver failure, as necessary;
b) when information is received from the aircraft experiencing radio receiver failure that it has passed any altitude/level, recall other aircraft which occupies the altitude/level to return to original route;
c) when information is received from the aircraft experiencing radio receiver failure that it has established visual contact, inform SEAHORSE APPROACH CONTROL OFFICE.
On the contrary, if there is no pilot transmission as well as pilot response to ATC instruction, it indicates that the aircraft is experiencing transmitter failure or total radio failure. In this situation, AERODROME CONTROL TOWER shall clear other aircraft to avoid the route and/or altitude to be flown by aircraft experiencing radio failure.
If the aircraft fails to indicate that it is able to receive and acknowledge transmissions, separation shall be maintained between the aircraft having the communication failure and other aircraft by providing flight information.
As soon as it is known that two-way communication has failed, appropriate information describing the action taken by AERODROME CONTROL TOWER, or instructions justified by any emergency situation, shall be transmitted blind for the attention of the aircraft concerned, on the frequencies available on which the aircraft is believed to be listening, including the voice frequencies of available radio navigation or approach aids. Information shall also be given concerning meteorological conditions at suitable aerodromes.
Pertinent information shall be given to other aircraft in the vicinity of the presumed position of the aircraft experiencing the failure.
If circumstances indicate that a controlled flight experiencing a communication failure might proceed to (one of) the alternate aerodrome(s) specified in the filed flight plan, the ATS unit(s) serving

the alternate aerodrome(s) and any other ATS unit(s) that might be affected by a possible diversion shall be informed of the circumstances of the failure and requested to attempt to establish communication with the aircraft at a time when the aircraft could possibly be within communication range.

0 comments:

Post a Comment