As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN TROUBLESHOOTING A SUBMERGED FUEL BOOST PUMP CIRCUIT BREAKER POPPING, MAINTENANCE TECHNICIANS DISCOVERED THE FUEL BOOST PUMP ELECTRICAL HARNESSES HAD CHAFED THROUGH THE BUNDLE INSULATION AND WAS ARCING ON ALUMINUM FUEL LINES P/N 6526355-37 INSIDE BOTH THE LEFT AND RIGHT WET WING. THE POTENTIAL FOR FUEL VAPOR IGNITION COULD HAVE CAUSED AN EXPLOSION.