As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) 4 OUT OF THE 8 BRUSHES IN THE STARTER/GENERATOR HAD LOOSE WIRES AND THE LOOSE RIVETS ATTACHING THEM. 3 BRUSHES WERE ON ONE COMMUTATOR AND 1 WAS ON THE OTHER. THE UNIT WAS REPLACED AND SENT FOR O/H. A TEAR-DOWN REPORT WAS REQUESTED AND THE RESULTS WILL BE ADDED WHEN RECEIVED.