As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) WHILE UNLOADING CARGO, THE HANDLER NOTICED A GLOWING WIRE AT THE AUXILIARY BATTERY COMPARTMENT. THE POSITIVE BATTERY CABLE WAS FOUND TO BE CHAFED AGAINST THE BATTERY CASE. THIS WAS POSSIBLY DUE TO DISPLACEMENT BY CARGO AND WAS SHORTED OUT AGAINST THE CASE.