As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AN ENGINE VIBRATION WAS NOTICED BY PILOT DURING CRUISE FLIGHT, THAT GOT WORSE AFTER LANDING. THE CAUSE OF THE ENGINE VIBRATION AND BLACK EXHAUST STAIN FROM ST/GEN EXHAUST PORT WAS DETERMINED TO BE THE FAILURE OF THE STARTER/GENERATOR`S REAR BEARING. THE BEARING HAD DETERIORATED TO THE POINT THAT THE FAN WAS RUBBING ON THE REAR DUCT/COVER. THERE WAS 47.2 HRS REMAINING UNTIL O/H.