As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FUELING, FUEL BEGAN LEAKING ALMOST IMMEDIATELY, APPROX 300 LITRES IN TANK. UPON INVESTIGATION BY MAINTENANCE CREW, 2 INCH CRACK DISCOVERED IN FUEL INTECONNECT AT WELDED SEAM. NO SIGNS OF CORROSION. MAY HAVE BEEN CAUSED BY TRAPPED WATER, HOWEVER NO TRACES OF MOISTURE. MAY HAVE BEEN A WEAK WELD JOINT. OTHER AIRCRAFT INSP BUT NO FURTHER DAMAGE NOTED.