As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN)RUDDER TRIM STUCK LEFT 2 DEGREES, FAILED TO MOVE IN EITHER DIRECTION, AFTER MORE THAN A HALF DOZEN TRIES TRIM STARTED WORKING NORMAL. HAPPENED AGAIN THIS TIME LEFT 3 DEGREES TRIM; AFTER SEVERAL TRIES,BEGAN TO MOVE NORMALLY. REPLACED RUDDER TRIM ACTUATOR.