The distinctive aquamarine fin bearing a palm tree with two crossed swords underneath, the emblem of Saudi Arabian Airlines, was seen this week at Bangor International Airport as a Boeing 747 made a nearly day-long stop at the city airport. The plane arrived 3 p.m. Tuesday and stayed overnight, leaving a little after 11 a.m. Wednesday after it was refueled and its crew went through customs, airport officials said. The plane is headed for a Boeing facility in Wichita, Kan., where its interior will be refurbished and its engines overhauled, Assistant Airport Director Tony Caruso said Wednesday. For Airport Director Rebecca Hupp, the presence of the airline was another example of one of the selling points of the airport, where international flights can clear customs and refuel. “We routinely have aircraft from all over the world,” Hupp said, noting that an Icelandic airline landed Wednesday at the airport. The light beige Saudi Arabian Airlines jet also featured the name of the airline in English and Arabic.