As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW RECEIVED A RIGHT HAND PROPELLER OIL PRESSURE CAS MESSAGE. THE CREW CALLED MAINTENANCE CONTROL AND ELECTED TO RETURN TO THE FIELD. MAINTENANCE INSPECTED AND REPLACED THE PRESSURE SWITCH IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 61-21-12. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.