As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED RECEIVING A RIGHT HAND SHAKER ON SIDE CAS MESSAGE AND RETURNED TO THE GATE. MAINTENANCE INSPECTED AND REPLACED THE ANGLE OF ATTACK SENSOR IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 27-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS THEN RELEASED FOR SERVICE.