As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NUMEROUS UNCOMMANDED ROLLS WITH AUTOPILOT ENGAGED AND HEADING SELECT IN USE OR NOT. REMOVED AND REPLACED AUTO PILOT CONTROL PANEL. OPS CHECK GOOD. REMOVED AND REPLACED YAW DAMPER COUPLER PER MM 22-11-141. OPS CHECK GOOD. REMOVED AND REPLACED AILERON POWER CONTROL UNIT. REMOVED AND REPLACED AUTO PILOT ASSESSORY UNIT. SYSTEM OPS CHECK GOOD ON GROUND.