As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FORWARD BEARING FAILED DUE TO SUSPECTED LACK OF LUBRICATION. THIS IS 3RD BEARING FAILURE ON THIS PART NUMBER STARTER/GENERATOR. CHAPTER 5 REQUIREMENT FOR BEARING REPLACEMENT IS 900 HOURS. WERE CHANGING AT 600 HOURS, BUT WILL NOW CHANGE AT 500 HOURS.