As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNABLE TO RECEIVE RADIO TRANSMISSION ON HF NR 1 RADIO. ACFT GROUNDED. REF AMM FIM TASK 23-11-801, PERFORM BITE CHECK OF HF SYSTEM. NO FAULTS FOUND. CYCLED ACFT POWER. PERFORMED AMM TASK 23-11-00, HF OPS TEST. TEST OPS NORMAL. GROUND VERIFICATION CHECKS OK. OK FOR ETOPS SERVICE. NO HISTORY PAST 30 DAYS.