September 11 attacks
The fourth plane, United Airlines Flight 93, was also a 757-200. It was traveling from Newark, New Jersey to San Francisco. It was scheduled to leave at 8 a.m., but was delayed for 42 minutes. When it finally took off, it carried only 37 ­passengers in its 182 seats. It had a little over 7,000 gallons of fuel. At 10:03 a.m, it crashed at  into an empty field near Shanksville, Pennsylvania after the passengers and crew unsuccessfully attempted to retake control of the plane to stop the hijack terrorists from hitting another landmark.