As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, THE RIGHT HAND ENGINE WAS SURGING AND FLIGHT 2216 RETURNED TO DAY. MAINTENANCE INSPECTED AND CLEANED THE RIGHT HAND ENGINE CONNECTOR IN ACCORDANCE WITH BOMBARDIER MAINTENANCE MANUAL 71-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.