As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HF NR 1 WILL NOT TRANSMIT OR RECEIVE. ACFT GROUNDED. NR 1 HF TRANSCEIVER BITE; KEY INTERLOCK LED SEQUENCES INCORRECTLY. REPLACED NR 1 HF TRANSCEIVER IAW MM 23-11-21. INSTALLATION TEST GOOD IAW SAME. HF COMM WITH SFO GOOD REF MM 23-11-00.