As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 4191 WAS IN ICING CONDITIONS AND HAD THE RIGHT HAND INBOARD DE-ICE BOOT FAIL. FLIGHT 4191 RETURNED TO THE FIELD. MAINTENANCE INSPECTED AND REPLACED THE EJECTOR FLOW CONTROL VALVE IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 30-13-06. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.