As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NEITHER HF RADIO WOULD TUNE (NO TONE) AND NEITHER WOULD RECEIVE. MULTIPLE FREQUENCIES ATTEMPTED. GROUNDED - YES. REMOVED AND REPLACED NR 1 HF ANTENNA COUPLER IAW AMM 23-11-61/401. VERIFIED BOTH HF TRANSMITTED AND RECEIVED NORMAL ON GROUND.