As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HF NR 1 UNREADABLE ON MULTIPLE FREQUENCIES. TRIED RETUNING ANTENNA SEVERAL TIMES. SF RADIO COULD HEAR US. HF NR 2 OPS NORMAL. GROUNDED - YES. ACCOMPLISHED HF SYSTEM TEST AMM TASK 23-11-00-730-801. OPS CK GOOD. NO HISTORY PAST 30 DAYS. GROUND VERIFICATION SATISFACTORY.