As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE SECONDARY ELECTRIC MOTOR, WHICH ACTUATES THE PITCH TRIM ACTUATOR IN RESPONSE TO AUTO PILOT COMMANDS WAS NOT OPERATIVE. THIS RENDERED THE AUTOPILOT SYSTEM U/S. THE ACTUATOR WAS REPLACED AND THE SYSTEM WAS CHECKED AIRWORTHY. THE O/H INTERVAL ON THESE ACTUATORS IS 6000 HRS. OR 5 YEARS INSTALLED TIME. (TC NR 20070503009)