As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) CREW REPORTED HIGH VIBRATION IN THE RT ENGINE. THE RT ENGINE WAS SHUTDOWN IN FLIGHT. THE CREW DECLARED AN EMERGENCY AND RETURNED TO THE FIELD. AFTER LANDING IT WAS REPORTED NUMEROUS PORTIONS OF THE ENGINE COWL WERE MISSING AND NUMEROUS DENTS ON THE VERTICAL AND HORIZONTAL STABILIZER.