As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 HF RADIO GARBLED AND UNREADABLE DURING RECEPTION, TRANSMIT FUNCTION WORKS AND IS RECEIVED BY RADIO AS LOUD AND CLEAR. ACFT GROUNDED. PERFORMED HF NR 1 OPS CHECK IAW MM 23-11-00-710-801. PASSED, NO DEFECT NOTED. CREW REPORTED WORKED FINE IN FLIGHT. NO HISTORY 90 DAYS.