As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTOPILOT ELEVATOR TRIM SERVO MOTOR REPLACED AFTER INSPECTION FOUND 1 CABLE GUIDE BROKEN OFF. REPLACEMENT SERVO MOTOR INSTALLED AND DURING OPS CHECK, FOUND SERVO MOTOR TO RUN OPPOSITE OF DESIGN. REMOVED SERVO MOTOR AND BENCH CHECKED TO VERIFY BY APPLYING VOLTAGE. SERVO MOTOR RAN BACKWARDS. NEW SERVO MOTOR INSTALLED, OPS CHECK NORMAL, AND ACFT RETURNED TO SERVICE.