As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT THE LEFT ENGINE INLET DEICE FAILED. THE FLIGHT CREW FOLLOWED THE PROCEDURES OF THE QUICK REFERENCE HANDBOOK BUT THE FAIL MESSAGE WOULD NOT CLEAR. DUE TO ICING CONDITIONS THE FLIGHT CREW RETURNED TO THE FIELD. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AND REPLACED THE LEFT ENGINE INLET DEICE EJECTOR FLOW CONTROL VALVE IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 30-22-00. OPERATIONAL CHECKS WERE COMPLETED AND THE AIRCRAFT RETURNED TO SERVICE.