As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HF #1 INDICATES FAIL ON COM CONTROL PANEL. SEEMS TO TUNE AND RECEIVE OK BUT REVERTS TO FAIL AFTER SHORT AMOUNT OF TIME. GROUNDED - YES. HF #1 BITE CK SHOWS CONT INPUT FAIL. PERFORMED FIM 23-11 TASK 802 & FAULT CLEARED. GROUND FUNCTIONAL CK GOOD.