As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT ILN, MAIN LANDING GEAR WHEEL WELL LIGHTS WERE INOPERATIVE. CIRCUIT BREAKER TRIPPED AND WOULD NOT RESET. FOUND WIRE BUNDLE FROM LEFT WHEEL WELL BURNT AND SHORTED UNDER FLOOR PANEL IN UPPER CARGO AREA. REPAIRED WIRE BUNDLE W0628 IN WORK PACK 2007790 PER BOEING STANDARD WIRING PRACTICES MANUAL. MAIN LANDING GEAR WHEEL WELL LIGHTS CHECKED GOOD ON GROUND IAW B767 AMM 33-31-00.