What was found
AT APPROXIMATELY 6 PM THE AIRCRAFT DEPARTED FROM MSY. AFTER APPROXIMATELY 30 MINUTES INTO THE FLIGHT, THE CREW REPORTED A FLAP FAULT CENTRAL WARNING PANEL INDICATION AND SPLIT FLAP INDICATION IN THE FLAP INDICATOR. FLAP FAULT DOES NOT CLEAR UNTIL FLAPS 7 WAS SELECTED. FLIGHT CREW RETURNED THE AIRCRAFT TO MSY. THE FLIGHT CREW DECLARED AN EMERGENCY BEFORE LANDING AND LANDED WITHOUT ANY FURTHER ISSUES. MAINTENANCE PERFORMED A COMPLETE RIG OF THE FLAP CONTROL SYSTEM AND MADE ADJUSTMENTS AS REQUIRED IN ACCORDANCE WITH THE MAINTENANCE MANUAL PROCEDURES. AIRCRAFT THEN OPERATED SATISFACTORILY ON A FUNCTIONAL CHECK FLIGHT FOR APPROXIMATELY AN HOUR. AIRCRAFT WAS RETURNED TO SERVICE.