As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 HF WILL NOT TRANSMIT. ACFT GROUNDED. RESET SYS POWER PERFORMED FIM TASK IAW AMM 23-11-801. BITE OF HF SYSTEM PASSED, NO FAULTS FOUND. GROUND VERIFICATION CHECKED OK NO HISTORY PAST 30 DAYS. SYSTEM RESTORED. REPLACED HF ANTENNA COUPLER #1 REF AMM TASK 23-11-61. ACCOMPLISHED FIM 23-11 TASK 801 FOR BOTH HF SYS. BITE PROCEDURE PASSED. NO FAULTS NOTED.