As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CRUISE, THE ENGINES BEGAN TO VIBRATE. THE CREW DECIDED TO SHUTDOWN BOTH ENGINES TO REGAIN CONTROL OF THE ACFT. THE PILOT PERFORMED A RESTART ON BOTH ENGINE AND THEY RETURNED TO NORMAL OPERATION. THE CREW DECLARED AN EMERGENCY AND LANDED WITHOUT INCIDENT.