As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WIRE BUNDLE W1402 HAS BURNT WIRES IN FORWARD PIT AT STA 654 -PDU WIRE BUNDLE. DAMAGED CARGO LOADING SYSTEM WIRES REPAIRED PER SWPM 20-10-13 AND OPS CHECK GOOD PER MM 25-53-01. CAUSE SUSPECTED TO BE METAL SHAVINGS PRODUCING AN ELECTRICAL SHORT AT BURN LOCATION.