What was found
UNCOMMANDED YAW DURING DECENT THRU 11,000 FT WITH AUTOPILOT ON AND WITH AUTOPILOT OFF ON APPROACH. YD CAUTION, HAD TO ENGAGE YD.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
UNCOMMANDED YAW DURING DECENT THRU 11,000 FT WITH AUTOPILOT ON AND WITH AUTOPILOT OFF ON APPROACH. YD CAUTION, HAD TO ENGAGE YD.