As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE FLIGHT CREW REPORTED THAT THE RUDDER TRIM WAS NOT ALWAYS REACTING TO RUDDER TRIM INPUT. MAINTENANCE INVESTIGATION REVEALED THAT THE RUDDER TRIM SELECTOR SWITCH WAS INTERMITTENT. THE SWITCH WAS REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE.