As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOTH HF RADIOS INDICATE INOPERATIVE. ACFT GROUNDED. VERIFIED FAULT, BOTH RTPS SHOW INOPERATIVE WITH EITHER HF 1 OR 2 SELECTED. PERFORMED A RADIO TUNING PANEL INOPERATIVE DISPLAY TOGGLE IAW AMM 23-12-41-800-802. BOTH RTPS NOW SHOW SELECTED FREQUENCIES WHEN SELECTED TO EITHER HF 1 OR 2. HF 1 OPS CHECKED GOOD IAW AMM 23-11-00-710-801. HF 2 OPS CHECKED GOOD IAW AMM 23-11-00-710-801. ETOPS GROUND VERIFICATION SUCCESSFUL.