As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) IN LEVEL FLIGHT, AT FL400 THE LT ENGINE BEGAN VIBRATING BADLY. POWER WAS REDUCED, BUT THE VIBRATION CONTINUED AND THE ITT BECAME VERY HOT. THE ENGINE WAS THEN SHUTDOWN MANUALLY. 2 PILOTS, 1 PASSENGER. THE CREW LANDED AT INTENDED DESTINATION. TROUBLESHOOTING TO BE PERFORMED. WILL INVESTIGATE TO ESTABLISH ROOT CAUSE AND PROVIDE INFORMATION.