As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT CREW RECEIVED A PITCH TRIM ASSYM CAS MESSAGE. AIRCRAFT RETURNED TO PHL. MAINTENANCE INSPECTED AND CHANGED THE LT AND RT ELEVATOR TRIM ACTUATOR IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 27-00-00. OPERATIONAL CHECKS WERE DONE ACCORDING TO DORNIER MAINTENANCE MANUAL 27-00-00. AIRCRAFT WAS RELEASED FOR SERVICE.