As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING APPROACH AUTOPILOT WAS DISCONNECTED AND MANUAL FLYING STARTED. NOTICED AN ABNORMALLY HIGH FORCE NEEDED TO MOVE AILERON CONTROL. LANDING WAS MADE NORMALLY. THE AUTOPILOT ROLL SERVO MOTOR WAS FOUND FAULTY AND WAS REPLACED IAW AMM. OPERATIONAL CHECK PERFORMED WITHOUT REMARKS. THE AIRCRAFT RETURNED TO SERVICE.