As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING COMPLETE PHASE INSPECTION, FOUND BATTERY WIRES FROM BATTERY BUS TO RT AND LT MAIN BUS (P83A0, P83B0) CURRENT LIMITERS (325 AMPS) TO BE SEVERELY BURNT FROM THE CURRENT LIMITER CONNECTIONS APPROXIMATELY 6 INCHES ALONG THE WIRE. SUBMITTER STATES IT APPEARS TO HAVE BEEN CAUSED BY CORROSION IN THE WIRE STARTING AT THE TERMINAL LUG.