As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PARKED AT THE GATE THE FLIGHT CREW REPORTED THE RIGHT ENVIROMENTAL UNIT FAILED AND SMOKE ENTERED THE CABIN. MAINTENANCE INSPECTED AND FERRIED THE AIRCRAFT TO DAY. UPON ARRIVAL IN DAY MAINTENANCE INSPECTED AND PERFORMED OPERATIONAL CHECKS IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 21-50-00 AND THE AIRCRAFT RETURNED TO SERVICE.