As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HF1 FAIL MESSAGE ON RADIO CONTROL PANEL. GROUNDED - YES. CYCLED HF 1 C/B P12-2 1 MIG 51A INST AND REMOVED REF B737-9 SSM 23-11-11-103.OPS CHECK GOOD AFTER C/B CYCLED REF B737-9 AMM 23-11-00 ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL. NO FAIL MESSAGE ON CONTROL PANEL.