As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN AP (CAPT SIDE) WAS ENGAGED, REC'D AP TRIM IS LWD CAUTION, A/C BEGAN TO ROLL RIGHT WHILE FD WAS DIRECTING A LEFT TURN. DISCONNECTED IT FOR REMAINDER OF FLIGHT. CHECKED RIGGING OF RIGHT AND LEFT AILERON PCU'S IAW 27-11-00. REMOVED MOISTURE FROM AILERON/AUTOPILOT SERVO. AUTOPILOT OPERATIONAL CHECKS GOOD.