As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HF 1 INOP. REPLACED LEFT HF TRANSCEIVER AS PRECAUSION AND 5X5 RADIO CHECK W ITH SFO ON 8843 AND 5574. REF AM 23-11-21. ROTABLE PARTS CHANGE WAS INDICATED - TT # 1164671 SN OFF 0402 IPC REFERENCE # 2300 TRANSCEIVER, HF OFF 29-2311-9-0010 8502 ON 29-2311-9-0010 2717