As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING AIRCRAFT OPERATION THE CREW REPORTED AN INTERMITTENT UNCOMMANDED YAW MOVEMENT. THE FLIGHT LANDED UNEVENTFULLY. THE FLIGHT CONTROL COMPUTER WAS REPLACED AND A SATISFACTORY OPERATIONAL CHECK WAS PERFORMED. AIRCRAFT WAS RETURNED TO SERVICE.