As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 6428 - CMH-MCO - AFTER TAKEOFF CLIMBING THROUGH 3500 FEET, FLIGHT ATTENDANT CALLED SAYING THERE WAS FUEL POURING OUT OF THE RIGHT WING. BY LOOKING AT THE FUEL QUANTITY GAUGES, THERE WAS A 100 POUND DIFFERENCE. RETURNED TO FIELD. MAINTENANCE REMOVED AND REPLACED THE RIGHT WING VENT VALVE.