What was found
LOST COMM/STUCK MIC ON RADIO 1 & RADIO 2. TFR SWITCH ON RADIO 1 HEAD APPEARS TO SHORT OUT. T/S: CHECKED MIC SWITCHES AT 3 ASP, O2 MASKS, ALL HAND MICS & AMP; YOKE SWITCHES - NO FAULTS OR HOT MICS. BITE TESTED ALL 3 TXCVRS NO FAULTS. SHOT COAX FROM TXCVRS TO ANTENNAS - CK GOOD. R & AMP; R REU AS PRECAUTIONARY. OPS CKD GOOD. REF 23-51-11-424-004. ROTABLE PARTS CHANGE WAS INDICATED - TT 1525649, SN OFF 01540 UNIT, ACCY, AUD OFF 24-2351-9-0001 1540 ON 24-2351-9-0001 1627.