As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTOPILOT TEST FAILED. PERFORMED MULTIPLE TEST WITH SAME RESULT. AP2 AND TRIM CAUTION WOULD REMAIN ILLUMINATED AFTER TEST. IT APPEARED THAT DURING CONTROL MOVEMENT DURING THE AP2 PORTION OF TEST, THE PEDAL WOULD MOVE BUT NOT RETURN TO NEUTRAL. REMOVED AND REPLACED YAW TRIM ACTUATOR IAW AMM 67-14-00, 4-1. MOC OK.