As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE, THE TOUCH CONTROL SWITCH ON PRIMARY FLIGHT DISPLAY CAME ON BY ITSELF. THE AUTO PILOT DID NOT DISCONNECT BUT WAS OFF LINE. THE AIRCRAFT DID NOT FOLLOW THE FLIGHT DIRECTOR. MAINTENANCE INSPECTED AND REPLACED THE FLIGHT DIRECTOR IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 22-11-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.