As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 HF RADIO RECEIVING TRANSMISSION UNREADABLE. ACFT GROUNDED. ACCOMPLISHED HF BITE IAW FIM 23-11, TASK 801. FOUND HF TRANSCEIVER LRU FAILED. ACCOMPLISHED FIM 23-11, TASK 803. ALL TESTS PASSED. FAULT WAS INTERMITTENT. SYSTEM GROUND VERIFICATION GOOD. REF FIM 23-11, TASK 806. NO HISTORY LAST 30 DAYS.