As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE RUBBER CUSHION CLAMP THAT SUPPORTS THE WIRE BUNDLE TO THE ALTERNATOR WAS CHAFED BY THE STEEL BRAIDING ON THE WIRE WEARING THROUGH CAUSING AN ELECTRICAL SHORT MELTING TIE INSULATION. UPON FURTHER INVESTIGATION, THE OTHER TWO CLAMPS ON SAME WIRE WERE CHAFED.