As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 474 OGG-OAK - DURING FLIGHT, CREW NOTED THE NR 1 HF RADIO WOULD NOT TRANSMIT WHEN THE MICROPHONE BUTTON WAS DEPRESSED. MAINTENANCE FOUND THE RADIO OPERATED NORMALLY PER FIM 23-11-00-810-806 ON THE GROUND AND RETURNED THE AIRCRAFT TO SERVICE.