As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AUTOPILOT ON SYSTEM A&B JERKS BACK AND FORTH WHEN MAKING TURNS. SOMETIMES THE A/C ROLL IS VIOLENT. THE CONTROL WHEEL OSCILLATES WITH THESE JERKY TURNS. RESET AUTOPILOT C/B, RERACKED AND CLEANED AUTOPILOT ELEC UNITS CHECK OPS IS GOOD PER DHL MM 22 20.