Description should include the following:

Ensure the correct frequency has been set and the volume turned up.
Check to ensure the mic is not stuck.
Troubleshoot all connections (cords).
If available, try an alternate frequency (Flight Service Stations/Aeronautical Radio Incorporated [FSS/ARINC]). There is often a very high frequency (VHF) given for every ultra-high frequency (UHF); one of them may not be monitored, while the other is.
There is no order or precedence for trying to contact ATC, including using guard; use these all at once if necessary.
If communications are established with an FSS or ARINC, the pilot should advise that radio communications on the previously assigned frequency have been lost, giving the aircraft's position, altitude, last assigned frequency, and then requesting further clearance from the controlling facility.
The preceding does not preclude the use of 121.5 MHz. There is no priority on which of these actions should be attempted first.
If the capability exists, do all at the same time.
If unable to re-establish communication with ATC, set the transponder, if equipped, to squawk 7600 for lost communications.
Use a light gun.

PLT391 and PLT542

Process/Skill Questions: