As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE FLIGHT CREW REPORTED AT APPROX. 1 HOUR INTO FLIGHT A YAW DAMPENER 1 AND 2 FAIL CAS AMBER MESSAGE WAS POSTED ALONG WITH A RUDDER FAULT CYAN CAS MESSAGE. THE MAINTENANCE TEAM TROUBLESHOT AND DETERMINED A DEFECTIVE RUDDER ELECTRONIC CONTROL UNIT. THE DEFECTIVE UNIT WAS REMOVED AND A REPAIRED UNIT WAS INSTALLED OPS CHECKS GOOD, NO DEFECTS NOTED. THE AIRCRAFT WAS RETURNED TO SERVICE.