As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, AN UNCOMMANDED RUDDER KICK WITH NO MOVEMENT OF PEDALS. THE CREW DIVERTED TO KDFW AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE DEFERRED THE AUTOPILOT SYSTEM. MAINTENANCE IN KTOL REPLACED THE LINEAR POSITION TRANSDUCER. OPERATIONAL CHECK GOOD IAW UAL 27-24-24. AIRCRAFT WAS RETURNED TO SERVICE.