As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HF 1 DOES NOT TRANSMIT OR RECEIVE CAN NOT HEAR SIDE TONE. ACFT GROUNDED. CONFIRMED FAILURE NO TRANSMIT OR RECEIVE & NO SIDE TONE. REPLACED NR 1 HF TRANSCEIVER IAW AMM 23-11-21-000-801. PERFORMED GROUND VERIFICATION OPS CHECK IAW AMM 23-11-00-730-801. OPS NORMAL.