As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT EXPERIENCED UNCOMMANDED RIGHT RUDDER INPUT DURING CRUISE WITH AUTOPILOT ON, ALSO DEVELOPED NOTICEABLE PITCH ROLL WITH AUTO PILOT ON. PERFORMED NJA OPERATIONAL CHECK FLIGHT AND COULD NOT DUPLICATE DISCREPANCY, NO FURTHER ACTION REQUIRED.