As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FLIGHT, A VIBRATION WAS NOTICED IN THE LEFT ENGINE. THE ENGINE WAS SHUT DOWN AND AN UNEVENTFUL LANDING WAS MADE. FURTHER INVESTIGATION REVEALED THAT THE LEFT GENERATOR HAD FAILED BEARINGS. THE ENGINE WAS INSPECTED AND NO OTHER DAMAGE WAS FOUND. INSTALLED ANOTHER GENERATOR AND OPS CHECKED OK.