As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING CRUISE THE #2 ENGINE WAS REPORTED TO HAVE A LOSS OF TORQUE. SUBSEQUENT ATTEMPTS TO REGAIN POWER RESULTED IN ENGINE GRINDING NOISE WITH SMOKE IN THE CABIN AND A LOSS OF OIL PRESSURE. THE ENGINE WAS SHUTDOWN. POST FLIGHT INSPECTION FOUND A BROKEN STARTER DRIVE GEAR.