As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) ENGINE VIBRATION MESSAGE AND MASTER WARNING WERE GENERATED SHORTLY AFTER TAKEOFF. THE PILOT FELT THE VIBRATION, ELECTED TO REDUCE POWER TO MINIMIZE VIBRATION AND PERFORMED AN UNEVENTFUL LANDING. ON GROUND TEST SHOWED NORMAL ENGINE PARAMETERS.