Fix issue #25 : Remove NA airport
Fix issue #25 : Remove NA airport

hzmarrou/FlightAirMap,Ysurac/FlightAirMap,hzmarrou/FlightAirMap,Ysurac/FlightAirMap,Ysurac/FlightAirMap,hzmarrou/FlightAirMap,hzmarrou/FlightAirMap,Ysurac/FlightAirMap