As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
15.06.2021 17:21 FUEL SPILLAGE IN RIGHT TANK DUE TO THE VALVE DID NOT CLOSE. DURING FUELING, A FUEL SPILLAGE IN THE RIGHT TANK OCCURRED DUE TO THE SHUTOFF VALVE DID NOT CLOSE. THE PLATFORM WAS CLEANED BY FIREMEN AND MAINTENANCE PERSONNEL PERFORMED THE FIM 28-21 TASK 809 PROCEDURE WAS PERFORMED CONFIRMING THE FAILURE OF THE RIGHT TANK REFUELING SHUTOFF VALVE; SO THE RIGHT TANK REFUELING SHUTOFF VALVE WAS REPLACED IAW AMM 28-21-51, TESTED CORRECT.