The three F-16 fighter jets launched from Langley Air Force Base (see (9:25 a.m.-9:30 a.m.) September 11, 2001) that have been directed toward Washington request and are given permission to fly at high altitude over the city. After the Langley AFB pilots are given the correct coordinates they are to head to (see (Between 9:41 a.m. and 9:50 a.m.) September 11, 2001), at 9:51 lead pilot Major Dean Eckmann looks on his radar screen and sees that the area where he has been directed to set up a combat air patrol is filled with air traffic. He therefore contacts the FAA’s Washington Center and tells the controller, “I need 3,000 feet of altitude in a 20-mile ring around DC.” When the controller asks the reason, Eckmann replies, “Higher headquarters’ request!” The controller gives him an altitude range of 25,000 to 27,000 feet. Eckmann radios the other two Langley pilots and gives them their altitude assignments: he’ll fly at 25,000 feet, Major Brad Derrig will be at 26,000 feet, and Captain Craig Borgstrom at 27,000 feet. According to author Lynn Spencer, the jets then head toward Washington at 700 miles per hour, just under the speed of sound. [Spencer, 2008, pp. 180-182] However, Spencer’s account of this incident conflicts with the 1st Air Force’s book about the 9/11 attacks. According to that account, several minutes before Eckmann reportedly asks for altitude clearance—at around 9:45 a.m.—he had been directed to drop to lower altitude to check out two unidentified aircraft, and was then told to inspect the Pentagon (see (9:45 a.m.) September 11, 2001). [Filson, 2003, pp. 66]