As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNCOMMANDED RUDDER INPUTS OR YAW MOTION INFLIGHT. BECOMING LARGER DURING DESCENT THROUGH 10000 AND COINCIDING WITH SPEED REDUCTION (AUTOPILOT IN CONTROL). PERFORMED AUTOFLIGHT CONTROL SYSTEM TEST, WITH NO ANNOMOLIES NOTED AND NO FAULTS.