As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
#1 HF RADIO WILL NOT TRANSMIT. GROUNDED - YES. ACCOMPLISHED HF ANTENNA ELECTRICAL BOND CHECK REF B737-800 AMM 23-11-51-760-801, NO FAULTS NOTED. REMOVED & REPLACED BOTH #1 & #2 HF ANTENNA COUPLER REF AMM 23-11-61, GROUND FUNCTIONAL CK NML. AIRCRAFT RELEASED FROM MEL 23-11C.