As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE REFUEL SHUTOFF VALVE STUCK OPEN. DURING REFUELING THE LEFT WING REFUEL/DEFUEL SHUT OFF VALVE FAILED TO CLOSE WHEN THE WING BECAME FULL AND FUEL CAME OUT OF THE VENT AND SPILLED ONTO THE RAMP. WHILE FUEL WAS BEING PUT ONBOARD THE PILOT TESTED THE HIGH LIMIT SHUT OFF AND ALL THE VALVES WORKED CORRECTLY. THE AIRCRAFT WAS BEING DEFUELED AND TECHS WERE ABLE TO CLOSE THE VALVE WITH THE HIGH LIMIT SWITCH. WE REFUELED TO FULL AND THE VALVE WORKED AS IT SHOULD HAVE. IT FAILED ONCE AND BEGAN WORKING NORMALLY AFTER.