Sabena served by the airline. Sabena used landplanes for its Congo operations and a program of aerodrome construction was initiated in the Congo. This was finished in 1926 and Sabena immediately began flights within the Belgian colony, the main route being Boma-Léopoldville-Élisabethville, a 2,288 km (1,422 mi) route over dense jungle. First, flights were operated with De Havilland DH.50s, although these were quickly replaced by the larger Handley Page W.8f which had three engines and offered ten seats. By 1931 Sabena's fleet, including the aircraft used on the Congo network, totalled 43 aircraft. Its mainstay type was the Fokker F.VIIB with
National Airlines (1999–2002) Like many other airlines, National had serious financial problems after the September 11 attacks in 2001, and only 41 months after their inaugural flight left Las Vegas' McCarran International Airport, the airline ceased all operations on November 6, 2002 after being in Chapter 11 bankruptcy for 23 months. As of the day of National's grounding on November 6, 2002, the airline had carried 1.85 million passengers through McCarran (January - November, 2002), and National was the airport's fourth-largest carrier based upon passenger volume. Departing McCarran International Airport at 4:20 p.m., National Airlines Flight 354 to Dallas/Fort Worth was the carrier's