Sabena 548 crashed while preparing to land at Brussels on 15 February 1961. The United States Figure Skating Team was aboard the aircraft, en route from New York to Prague via Brussels to compete in a figure skating championship. Six Caravelle jetliners were introduced on all medium-haul routes in Europe from February 1961, being flown on most routes alongside the Convair 440s, until the early 1970s. The beginning of the 1960s saw a major upheaval for Sabena in the Congo. Widespread rioting against Belgian colonials in the months leading up to, and after the independence of the Democratic Republic of the
National Airline History Museum Martin 4-0-4s built. TWA operated 40 in their fleet along the U. S. east coast, while strong competitor Eastern Airlines operated the largest 4-0-4 fleet, flying 60 aircraft along that airline's eastern seaboard route, including in and around Florida. The museum's Martin 4-0-4 has not flown in years. As part of the National Airline History Museum’s reorganization plan, which began in 2011, a maintenance inspection of the Martin 4-0-4 was completed in August 2011 to determine the feasibility of returning the aircraft to flying status. Rumors of extensive corrosion and insurmountable mechanical problems were found to be untrue, and a