As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FL 0060 - TUS TO OMA - FLIGHT CREW REPORTED FUEL LEAK ON LT WING. FLIGHT CREW RETURNED TO BLOCK AND MX PERSONNEL IAH RECOVERY REMOVED AND REPLACED FLAPPER VALVE, OPERATIONALLY AND LEAK CHECK SATISFACTORY. A/C WAS RELEASE TO RETURN FOR SERVICE IN AIRWORTHY CONDITIONS.