As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HF 1 & HF 2 RADIOS APPEAR TO BE TUNING AND TRANSMITTING BUT WITH INAUDIBLE RECEPTION. KEY INTERLOCK LED ON NR 1 HF TRANSCEIVER FLASHES ON THEN GOES OUT IMMEDIATELY (NR 2 HF ALL LED'S COME ON FOR THREE SECONDS). REPLACED CAPTS RADIO TUNING PANEL PER MM 23 12 41. TESTS GOOD PER SAME. NR 1 HF BITE GOOD. HF COMM SYS TEST GOOD FROM SFO ARINC RADIO REF MM 23 11 00. VERIFICATION FLIGHT SUCCESSFUL.