As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WITH AUTOPILOT CONNECTED RED (AP PITCH TRIM FAIL) ANNUNICTOR ILLUMINATED. WITH AP ON WE HEARD AN INTERMITTENT CLICK ( LIKE WHEN A CB POPS) BUT ALL CB'S ARE IN. [07-23-07] COMPLETED COMPLETE TRIM SYSTEM OPERATIONAL CHECK IN NORMAL EMERGENCY AND AUTO-PILOT. ACCESSED PITCH TRIM ACTUATOR CLEANED, LUBED AND OEPRATED ACTUATOR NO DEFECT NOTED AT THIS TIME ALL WORK IAW 400XP 27-40-00 & 12-20-00.