Question

In the event of a communications failure while in controlled airspace a pilot should select the code . . . . . on the transponder to alert ATC.

Answer 1

In a communications failure in controlled airspace, a pilot should select the transponder code 7600. This code alerts ATC to the communication problem, enabling them to provide necessary assistance.

Step-by-step explanation:

In the event of a communications failure while in controlled airspace, a pilot should select the transponder code 7600 to alert Air Traffic Control (ATC). The code 7600 is internationally recognized as the squawk code that indicates a loss of communication. When a pilot dials this into the aircraft's transponder, ATC can identify that the aircraft is experiencing communication issues and provide appropriate assistance. It's also important for the pilot to follow standard lost communication procedures, which may include continuing to fly the last assigned route and altitude, and squawking 7600 until communications are reestablished or the flight lands.