As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HF 2 WILL NOT TUNE OR TRANSMIT. ACFT GROUNDED. REMOVED HF COUPLER NR 2 REF AMM 23-11-61-000-801. ACCOMPLISHED HF ANTENNA ELECTRICAL BOND CHECK REF AMM 23-11-51-760-801. BONDING CHECKS GOOD -2.6 MILLIOHMS AND 2.7 MILLIOHMS. INSTALLED NEW HF COUPLER REF AMM 23-11-61-400-801. OPS CHECK IAW THE SAME FOR BOTH AUDIO PANELS.