As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 HF RADIO INOPERATIVE WILL NOT TRANSMIT OR RECEIVE WITH THE VOLUME TURNED UP WE DO HEAR SLITE NOISE, STATIC. ACFT GROUNDED. ACCOMPLISHED OPS TEST IAW AMM 23-11-21-400-801, STEP 3F. COMMUNICATION TEST ACCOMPLISHED WITH CLEAR COMMUNICATION.