As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNABLE TO TRANSMIT ON NR 1 OR 2 HF, ALSO NO SIDETONE. RECEPTION GOOD. ACFT GROUNDED. VERIFIED NR 1 SYS FAULT. CYCLED SHIPS POWER, NR 1 HF WEAK, NR 2 HF OK. R & R NR 1 HF COUPLER IAW AMM 23-11-61-000-801 AND 23-11-400-801. GROUND VERIFICATION GOOD. NR 1 AND NR 2 HF SYS BOTH OPS CK NORMAL.