As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON DESCENT WHEN AUTO PILOT WAS DISCONNECTED, FOUND THAT TRIM WHEEL WAS FROZEN IN POSITION. AS DESCENDED BELOW FREEZING LEVEL TRIM SLOWLY BECAME FREE. NORMAL APPROACH AND LANDING. REMOVED BOTH LEFT AND RIGHT ELEVATOR TRIM ACTUATORS AND REPLACED TRIM WITH A SERVICEABLE ONE, OPS IAW MM 27-31-00. ALSO, REMOVED ELEVATOR TRIM SERVO FOR TROUBLESHOOTING. OPS CHECKS GOOD ON GROUND. CLEARED TEST FLIGHT.