As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) NR 2 GENERATOR SYSTEM TRIPPED OFF LINE IN FLIGHT. WOULD NOT COME BACK ON LINE. INVESTIGATION SHOWED THAT THE BRUSHES WERE WORN OUT AND THE COMMUTATOR SHOWED SIGNS OF PITTING AND ARCING. THE GENERATOR ASSEMBLY WAS REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE.