As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN NR 1 OR 2 HF IS SELECTED, BOTH ACTIVE & STANDBY DISPLAY INOPERATIVE AND WILL NOT TUNE. SIDE TONE HEARD ON HF WHILE SELECTED. ACFT GROUNDED. VERIFIED DISCREPANCY. ACCOMPLISHED RADIO TUNING PANEL SYSTEM RESET IAW AMM 23-12-41. SYSTEM CHECKED NORMAL IAW AMM 23-12-00-730-801, VHF COMMUNICATION SYSTEM, SYSTEM TEST ACCOMPLISHED.