As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, THE CREW RECEIVED A EMERGENCY PARKING BRAKE ACCUMULATOR PRESSURE LOW CAS MESSAGE AND DIVERTED TO PIT. MAINTENANCE INSPECTED AND REPLACED THE HYDRUALIC CHECK VALVE IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 29-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.