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 A PARKING BRAKE ACCUMULATOR PRESSURE LOW CAS MESSAGE. THE CREW FOLLOWED THE QUICK REFERENCE HANDBOOK AND DIVERTED TO ROC. THE AIRCRAFT WAS THEN FERRIED TO PIT. MAINTENANCE INSPECTED AND REPLACED THE PARKING BRAKE VALVE IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 32-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.