As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT GENERATOR FAILED, WARNING LIGHT ILLUMINATED, VOLTAGE DROPPED TO ZERO AND A SLIGHT VIBRATION OCCURED THAT HAD DIRECT RELATIONSHIP TO THROTTLE POSITION. PILOT ELECTED TO RETURN TO DEPARTED AIRPORT. NO FURTHER DEFECTS WERE NOTED WITH UNEVENTFUL LANDING.