As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON ARRIVAL, COM L AND COM R BOTH HAD A INTERMITTANT SOUND IN HEADSETS. SPEAKERS WERE ON, TURNED OFF, NO CHANGE. TRIED L & R INDEPEDANTLY- NO COM. SWITHCED TO CENTER TO REGAIN ATC/FLT COMS. R COM WORKED AFTER LANDING. T/S FOUND L VHF T/R INOP AND NOT TESTING. REMOVED AND REPLACED L T/R PER AMM 23-12-01-4 OPS CHECKS NORMAL OK FOR SERVICE. LEFT T/R MFG P/N 822-1287-101 S/N OFF 770XB AND ON 2RFDR.