As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN-FLIGHT ELECTRIAL FAILURE OF ALL ELECTRICAL EQUIPMENT BEING SERVICED BY BUS NR 1. PILOT COMMENTED SPARKS COMING FROM UNDERNEATH INSTRUMENT PANEL. NO BREAKERS TRIPPED. FOUND WIRE BUNDLE RESTING ON CIRCUIT BREAKER. WIRE BURNED OUT LAYING ACROSS WARNING BREAKER (WIRE NR BP1307) MECHANICALLY INSTALLED LUG CONNECTORS TO BUS NR 1, BUS NR 2, BUT SPLICE ABOVE WIRE.