As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 HF RADIO DOES NOT TUNE CORRECTLY. WE COULD NOT UNDERSTAND ATC ON EVERY FREQUENCY WE TRIED. THEY HAD A DIFFICULT TIME UNDERSTANDING US. NR 2 HF COMMUNICATIONS WERE NORMAL. GROUNDED - YES. RESET/CYCLED NR 1 HF C/B AND PERFORMED BITE OF NR 1 HF TRANSCEIVER REF FIM 23-11 TASK 801. OPERATED BOTH NR 1 AND NR 2 HF ON MULTIPLE FREQ. BOTH OPS CK GOOD XMIT AND RECEIVE.