If a pilot loses communication with ATC, what must they do?

When a pilot loses communication with Air Traffic Control (ATC), executing lost communication procedures is essential for ensuring safety and compliance with aviation regulations. These procedures are designed to guide the pilot on how to proceed in the absence of communication while minimizing the potential for conflicts or safety issues.

Lost communication procedures typically include actions such as squawking 7600 on the transponder to indicate a communication failure, maintaining the last assigned altitude, and following the last ATC clearance or route given, unless otherwise instructed by regulations. The focus is on maintaining a safe and orderly flow of air traffic.

In this situation, continuing to fly as planned without regard for the lost communication would not be prudent, as it could lead to airspace conflicts or failure to adhere to air traffic management directives. Returning to the last contacted airport may not be the best course of action unless specifically required by the lost communication procedures or if it makes sense for the flight's circumstances. Attempting to contact other aircraft is highly unlikely to resolve a communication issue with ATC and could detract from the pilot's ability to follow established procedures.

By following the lost communication procedures, the pilot ensures they are taking the most appropriate, safety-oriented steps in a potentially challenging situation.