Communication problems

Date: 2015-10-07; view: 600.

COMMUNICATION PROBLEMS

VI. Read the text and discuss it.

Radio communication is considered to be failed if during 5 minutes the crew or the ATC unit doesn't answer the repeated calls through all available radio communication channels.

can be caused by a number of reasons

There are two types of communication failure- one-way communication failure and two-way communication failure.

One-way communication failureis a situation when either pilot or controller is unable to transmit or receive a message.

Two-way communication failureis a situation when both pilot and controller are unable to transmit and receive a message.

In the event of one-way communications (i.e. aircraft can receive only), the controller may request the aircraft to make identifying turns, flash its navigational lights, transmit codes or IDENT signals on the transponder, rock its wings, etc, to acknowledge clearances or instructions

When it is known that two-way communication failure has occurred, ATC shall maintain separation between the aircraft having the communication failure and the other aircraft based on the assumption that the aircraft will operate in accordance with VMC or IMC.

In the event of two-way radio communication failure the pilot-in-command shall 1) use all available facilities, take measures to re-establish communication with the ATC directly or by means of other aircraft. In such cases, if necessary, the emergency frequency 121.5 MHZ may be used.

2) Transmit position reports and intentions, assuming the aircraft transmitter is operating, and prefixing all transmissions with “TRANSMITTING BLIND”.

3) Turn on landing lights, beacons, and strobe lighting.

Adherence to the appropriate RCF emergency procedures depends on the flight conditions - VMC or IMC.

In VMC:

Pilots shall

· set transponder to Code 7600

· continue to fly in visual meteorological conditions

· land at the nearest suitable aerodrome

· report the arrival by the most expeditious means to the appropriate air traffic control unit .