As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING POST-FLIGHT INSPECTION, ANTI-SIPHON VALVE IN RT OTBD WING FUEL FILLER WAS FOUND FORCED OUT AT FLAPPER SEAL AREA AND CRACKED UP TO ATTACH FLANGE. VALVE WAS REPLACED WITH NEW PART, SAME PN. DAMAGE WAS CAUSED BY FUELLER`S FORCING FUEL NOZZLE IN FILLER AND TWISTING AND IS AN ONGOING ISSUE. FUEL STAFF SHOWN DAMAGED PARTS AND PROBLEM EXPLAINED AGAIN AS THEY PROVIDE 80 PERCENT OF OUR FUEL!