As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HF RADIO 2 SHOWS FAIL. GROUNDED-YES. VERIFIED HF 2 SHOWS FAIL AND WILL NOT BITE/NO LIGHTS ON TRANSCEIVER FRONT PANEL. REMOVED AND REPLACED NR 2 HF TRANSCEIVER, REF B737-800 AMM 23-11-21. OPERATIONS CHECKS GOOD, NO FAULTS. ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL.