As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTO PILOT DISENGAGED 5 SECONDS AFTER SELECTING FLAPS TO 15 DEGREES. AUTO PILOT FAIL AMBER LIGHT SHOWED ON PFD'S. SEEMED LIKE AUTO PILOT TRIM COULD NOT KEEP UP. LUBRICATED ELEVATOR TRIM ACTUATORS AND COMPLIED WITH A SATISFACTORY OPS CHECK OF THE ELEVATOR TRIM SYS AND AUTO PILOT SYS IAW MM 22-11-01 & 27-32-04.