three fuel tanks, severed several hydraulic lines and electrical wires, in addition to tearing a large hole on the top of the wing, over the wheel well area. On July 21, 1979, one month after the above tire incident, another Air France Concorde blew several of its landing gear tires during takeoff. After that second incident the "French director general of civil aviation issued an air worthiness directive and Air France issued a Technical Information Update, each calling for revised procedures. These included required inspection of each wheel/tire for condition, pressure and temperature prior to each take-off. In addition, crews were advised that landing gear should not be raised when a wheel/tire problem is suspected." On November 15, 1979 American Airlines Flight 444 diverted to Dulles Airport instead of its scheduled destination of Washington National Airport due to the detonation of a small bomb. The bomb detonated incompletely in the cargo hold of the aircraft and resulted in 12 passengers being treated for smoke inhalation. It was later determined this was the third bombing perpetrated by Theodore John Kaczynski aka "The Unabomber." Ultimately it was the involvement of the aircraft in his bombing targets that resulted in the FBI becoming involved with the investigation and search for the "Unabomber." On July 20, 1988, a Fairways Corp. de Havilland Canada DHC-6 Twin Otter stalled and crashed after takeoff. The sole occupant, the pilot, was killed. On June 18, 1994, a Learjet 25 operated by Mexican carrier TAESA crashed in trees while approaching the airport from the south. 12 people died. The passengers were planning to attend the 1994 FIFA World Cup soccer games being staged in Washington, D.C. On September 11, 2001, American Airlines Flight 77 took off from Dulles Airport out of Gate D-26 bound for Los Angeles. It was deliberately crashed into the Pentagon at 9:37 am EDT by Al-Qaeda terrorists, killing everyone on board. See also Busiest airports in the United States by international passenger traffic List of thin shell structures Thin-shell structure List of tallest air traffic control towers in the United States References External links Footage of the Dedication of Dulles International Airport in 1962 Washington metropolitan area Airports in Virginia Eero Saarinen structures Concrete shell structures Transportation in Loudoun County, Virginia Transportation in Fairfax County, Virginia Modernist architecture in Virginia Airports established in 1962 Buildings and structures in Loudoun County, Virginia 1962 establishments in Virginia