As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EN ROUTE SLC-PSP, ALL COMM RADIOS QUIT. RTU'S AND STANDBY CONTROL HEAD SHOWED STICK ON TRANSMIT ON ALL RADIOS. EXTREMELY LOUD STATIC, MULTIPLE MORSE CODE IDENTIFIERS, MUSIC AND VHF VOICE ON ALL SPEAKERS. COULD NOT CONTROL SPEAKERS IN ANY WAY. RESET ALL AUDIO BREAKERS WITH NO CHANGE. DIVERTED TO BOI. REMOVED AND REPLACED AUDIO ELEC CONTROL UNIT, PER MM 23-81-01. ALL RADIOS TEST NORMAL.