As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) THE LT ENGINE SHUT DOWN IN-FLIGHT. AIRCRAFT MADE UNEVENTFUL LANDING. TECHNICIANS DETECTED GRINDING NOISE WHILE HAND ROTATING PROPELLER. GEARBOX WAS REMOVED AND OPENED. TORSION VIBRATION DAMPER HAD FAILED AND PARTIALLY CAME APART.