As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
EN ROUTE, THE CREW RECEIVED AN EMERGENCY PARK ACCUMULATOR FAIL CAS MESSAGE. THE CREW DECLARED AN EMERGENCY AND DIVERTED TO BWI. MAINTENANCE INSPECTED AND BLED THE HYDRAULIC SYSTEM IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 29-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.