As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN)ON DESCENT WITH AUTOPILOT ON, THE STAB OUT OF TRIM LIGHT CAME ON. DISCONNECTED AUTOPILOT AND ATTEMPTED TO RETRIM. POSSIBLE TO TRIM NOSE UP BUT NOT POSSIBLE TO TRIM NOSE DOWN ELECTRICALLY OR MANUALLY. CORROSION IN AUXILIARY BRAKE HOUSING AND BRAKE ARMS BINDING - STAB TRIM JACK SCREW REPLACED.