As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) VIBRATIONS/IFSD DURING A REPOSITIONING FLIGHT, THE CREW REPORTED HIGH ENGINE VIBRATIONS AND TEMPERATURE. THE ENGINE WAS SHUTDOWN AND SECURED BEFORE THE ACFT RETURNED TO THE DEPARTURE AIRPORT. AN UNEVENTFUL DUAL ENGINE LANDING WAS COMPLETED. TROUBLESHOOTING IS ON-GOING.