As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE DISPENSER FUEL NOZZLE WAS REMOVED INADEQUATELY AFTER THE FUEL REFILLING SERVICE, THE ADAPTER CHECK VALVE SEAL WAS REMOVED AND A LITTLE FUEL LEAKAGE APPEARED. SUCH SEAL WAS REINSTALLED AND NO LEAKAGES APPEARED AGAIN. THE FUEL FILL ADAPTER WAS REPLACED AND THE SYSTEM WAS TESTED IAW MM 28-20-01. ALL CORRECT.