Radio Failure Procedures: Maintaining Safety Without Communication

Imagine your radio develops a fault. You key the microphone—nothing. You hear a disconcerting silence. You are not in distress yet (the aircraft is flying fine), but you cannot communicate with ATC. This is a radio failure situation, and you must handle it methodically.

Radio failures fall into three categories: receiver-only failure (you can transmit, but cannot hear), transmitter-only failure (you can hear, but cannot transmit), and complete failure (neither transmit nor receive). Each requires different procedures.

The overarching principle: Do not panic and do not deviate significantly from your flight plan without authority. ATC knows you are there. They see your radar target. If you stop responding, they will assume radio failure and issue instructions via light signals or other aircraft. Your job is to remain predictable.