As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD - FLT 0154 - DURING OVERNIGHT MAINTENANCE, AIRCRAFT WOULD NOT ACCEPT ELECTRICAL POWER OF ANY KIND. FOUND WIRE BURNED AND SHORTED IN THE FORWARD CARGO BAY LEFT SIDE JUST AFT OF DOOR OPENING. MAINTENANCE REPLACED AND REPAIRED WIRING ACCORDING TO ESTABLISHED PROCEDURES. SYSTEM GROUND CHECKED NORMAL OPERATION. (X)