As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MEM - FLIGHT 2291, THE CREW REPORTED FUEL LEAKING FROM THE LEFT WING ON CLIMB. THE AIRCRAFT RETURNED TO MEM WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED THE LEFT WING FLAPPER VALVE, LEAK CHECKED WITH NO DEFECTS NOTED, AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.