As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INVESTIGATED PILOT REPORT OF INTERMITTENT PITCH TRIM FAIL INDICATION ON CLIMBOUT WITH AUTOPILOT ENGAGED. OPERATIONS REPORTED NORMAL IN OTHER MODES. REPLACED PITCH TRIM CONTROLLER WITH A REPAIRED CONTROLLER. FUNCTIONAL TESTS OF PITCH TRIM SYS NORMAL, NO FAULTS INDICATED. ACFT HAS BEEN STORED ON AND OFF FOR LAST SEVERAL YEARS WITH INFREQUENT USEAGE.