United Airlines Flight 93

United Airlines Flight 93 was a scheduled U.S. domestic passenger flight from Newark International Airport, in Newark, New Jersey, to San Francisco International Airport. It was hijacked by four men as part of the September 11 attacks. Over 40 minutes into the flight the hijackers breached the cockpit, overpowered the pilots and took over control of the aircraft, diverting it toward Washington, D.C. Several passengers and crew members made telephone calls aboard the flight and learned about the attacks on the World Trade Center and the Pentagon. As a result, the passengers decided to mount an assault against the hijackers and wrest control of the aircraft. The plane crashed in a field just outside Shanksville, Pennsylvania, about 150 miles (240 km) northwest of Washington, D.C., killing all 44 people aboard, including the hijackers. The plane fragmented upon impact, leaving a crater, and some debris was blown miles from the crash site. The remains of everyone on board the aircraft were later identified. Subsequent analysis of the flight recorders revealed how the actions taken by the passengers prevented the aircraft from reaching either the White House or United States Capitol. A permanent memorial is planned for construction on the crash site. The chosen design has been the source of criticism and is scheduled to be dedicated in 2011