As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ACFT ROLLED TO RT ON APPROACH AND FELT SPRING LIKE, FLAPS AT 45 DEGREES, GOT AILERON TRIM WITH AUTOPILOT ON. DURING OPS CK OF AILERON TRIM, CAN`T TRIM ACFT LEFT WING DOWN. R & R AILERON TRIM PANEL IAW 21-12-10, OPS CK GOOD. C/W OPS CK OF AUTO PILOT AILERON SERVO GOOD. SN OFF AW0128.