As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING FUELING, A FUEL SPILLAGE IN THE LEFT TANK WAS DETECTED DUE TO THE SHUTOFF VALVE DID NOT CLOSE. THE PLATFORM WAS CLEANED BY FIREMEN AND MAINTENANCE PERSONNEL CLOSED THE VALVE MANUALLY AND THE REFUELING SHUTOFF VALVE WAS DEFERRED BY MEL 28-10-2 CAT C. AT MEX, DURING OVERNIGHT CHECK, THE PRESSURE FUELLING SYSTEM TEST WAS PERFORMED IAW AMM 28-21-00, NOT LEAK WERE DETECTED AND SHUTOFF VALVE WORKED CORRECT.