What was found
ETOPS - #2 HF RADIO WILL NOT TUNE. BITE TEST PASS PER AMM 23-11-00. DUE TO MULTIPLE WRITES UP OF HF #2, REMOVED & INSTALLED NEW HF COUPLER & TRANSCEIVER PER AMM 23-11-36 & AMM 23-11-33. OPS TEST HF#2 PASS PER AMM 23-11-00. BITE TEST HF#2 PASS PER AMM 23-11-00. CALLED SFO ARINC, RECEIVED & TRANSMIT LOUD AND CLEAR. OK FOR SERVICE. COUPLER, ANTENN OFF 43-2311-9-0001 04877 ON 43-2311-9-0001 04554, TRANSCEIVER, HF OFF 43-2311-9-0002 05127 ON 43-2311-9-0003 00160.