As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT NR 2 DC GENERATOR CAUTION LIGHT ILLUMINATED, CREW ELECTED TO RETURN FOR NORMAL LANDING AT DEPARTURE AIRPORT. MAINTENANCE FOUND NR 2 STARTER GENERATOR END BEARING FAILED CAUSING COOLING FAN TO RUB ON HOUSING. SHOP TEARDOWN FOUND BEARING FAILURE AT ANTI-DRIVE END.