As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW REPORTED THE AUTO PILOT SYSTEM AS BEING INOP. THE AUTO PILOT MODE CONTROLLER, PN 065-00086-0017 WAS FOUND TO BE FAULTY. IT WAS R & R USING A SERVICEABLE UNIT OF THE SAME PN IAW AMM 12-A-22-10-05-00A-920A-A. THE SYS OPERATIONALLY TESTED GOOD IAW AMM 12-A-22-10-00-00A-903A-A.