As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THAT AFTER TAKE OFF THE F/A CALLED WITH A VISUAL VENTING FROM THE RT WING. THE CREW RAN THE QRH AND RETURNED TO DEPARTURE WHERE IT LANDED WITHOUT INCIDENT. MX R & R THE RT FUEL TANK FLAPPER VALVE AT RIB 19, LEAK CHECKED WITH NO DEFECTS NOTED, AND THE ACFT WAS APPROVED FOR RETURN TO SERVICE.