As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW RECEIVED A RIGHT HAND AIRFOIL DE-ICE FAIL AND REPORTED IT TO MAINTENANCE CONTROL. FLIGHT 4055 WAS THEN ADVISED TO RETURN TO PIT. MAINTENANCE INSPECTED AND REPLACED THE EJECTOR FLOW CONTROL VALVE IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 30-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.