As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED THE RUDDER TRIM BOUND UP DURING FLIGHT AND RETURNED BASE WITH NO INCIDENT. MAINTENANCE INSPECTED RUDDER TRIM CONTROL SYSTEM AND FOUND A TRIM TAB CABLE PULLEY AT FS 255 NOT ROTATING, MX CLEANED AND LUBRICATED CABLE PULLEY AT FS 255. THE RUDDER TRIM ACTUATOR WILL ALSO BE REPLACED AS A PRECAUTIONARY MEASURE.