As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UNABLE TO OPEN LT SIDE FUELING VALVES FOR FUELING. TROUBLESHOOTING FOUND LEFT WING BOTH REFUEL VALVE INOPERATIVE. MANUAL OPEN NO HELP. SWAPPED CENTER RIGHT REFUEL CONTROL VALVE WITH LT WING OUTBOARD. REFUEL CARRIED OUT CHECK LT WING OUTBOARD VALVE OK. REPLACED LEFT INBD WING REFUEL VALVE.