As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HF TRANSMISSION & RECEPTION ARE INOP, WEAK, GARBLED INTERMITTENT, ETC. AT ALL CREW STNS. (1 = L HF, 2 = R HF) CREW COMMENTS: UNABLE TO XMIT. CAN RECEIVE OK. LONG SIDE TONE WHEN TUNING. COMPLIED WITH MEL. REMOVED AND REPLACED RIGHT HF TRANSCEIVER.