As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THAT THE PRESSURIZATION FAILED AND RECEIVED AN AUTO MODE CABIN ALTITUDE CAS MESSAGE. MAINTENANCE INSPECTED AND REPLACED THE CPCS CONTROL UNIT IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 21-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.