As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LOST ABILITY TO TRANSMIT USING HF 1 TRIED RECHANNELING RADIO NO EFFECT SWITCHED TO HF 2, OPS OK. ACFT GROUNDED. PERFORMED T/S REF FIM 23-11-00-810-806, FOUND NR 1 RT INOP R & R NR 1 RT IAW AMM 23-11-21-801 AND INSTALLED NR 1 RT IAW AMM 23-11-21-400-801. GROUND VERIFICATION FOR NR 1 HF SUCCESSFUL, NO HISTORY 30 DAYS.