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Context of '8:46 a.m. September 11, 2001: Boston Center Notices Flight 11 Disappear from Its Radar Screens, Does Not Realize It Has Crashed'

This is a scalable context timeline. It contains events related to the event 8:46 a.m. September 11, 2001: Boston Center Notices Flight 11 Disappear from Its Radar Screens, Does Not Realize It Has Crashed. You can narrow or broaden the context of this timeline by adjusting the zoom level. The lower the scale, the more relevant the items on average will be, while the higher the scale, the less relevant the items, on average, will be.

Flight 11 disappears from primary radar four seconds before it hits the North Tower of the World Trade Center (see 8:46 a.m. September 11, 2001), according to an FAA timeline. [Federal Aviation Administration, 9/17/2001 pdf file] At the FAA’s Boston Center, Colin Scoggins, the center’s military liaison, notices the loss of the plane’s primary radar track. As the center only monitors high-level air traffic, its radar information does not pick up aircraft below 1,500 feet. But Scoggins does not realize Flight 11 has crashed. The Boston Center’s last known position for the plane before it disappears is nine miles northeast of New York’s JFK International Airport. [Spencer, 2008, pp. 49]

Entity Tags: Boston Air Route Traffic Control Center, Colin Scoggins

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

Employees at the FAA’s Boston Center learn that a plane has hit the World Trade Center, and Colin Scoggins, the center’s military liaison, starts to wonder if this plane was Flight 11, which disappeared from radar just before the time of the crash (see 8:46 a.m. September 11, 2001). After the center’s manager informs them that a plane has crashed into the WTC, personnel at the system engineer’s desk turn on CNN and see the footage of the burning North Tower. Scoggins hears yelling from the desk and walks over to see what is going on. He sees the news reports, which currently state that just a small aircraft hit the tower. As author Lynn Spencer will describe: “His initial thought is that some controller must have really screwed up. Yet the more he thinks about it, the less that makes sense. It’s a clear day with unlimited visibility, and planes don’t just fly into buildings.” Along with supervisor Daniel Bueno, Scoggins starts contacting other facilities, trying to find out more about what is going on. Several of these facilities are picking up an aircraft’s emergency locator transmitter—a device which begins transmitting a signal when a plane crashes. But Boston Center lacks the necessary equipment to pinpoint where the signal is coming from. Looking again at the TV footage showing the WTC, Scoggins wonders if Flight 11 crashed into the tower. He tells Bueno, “Call American [Airlines] and confirm if their aircraft is down!” Bueno complies, but soon reports back that American Airlines “can’t confirm that the plane that has hit the Trade Center is American 11. They’ve lost their radar track on the plane and cannot confirm where it is.” [Spencer, 2008, pp. 49-50] Scoggins will later recall that American Airlines does not confirm that its plane has hit the North Tower for several hours. He says, “With American Airlines, we could never confirm if it was down or not, so that left doubt in our minds.” [Vanity Fair, 8/1/2006]

Entity Tags: Colin Scoggins, Boston Air Route Traffic Control Center, Daniel Bueno, American Airlines

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

An air traffic controller at the FAA’s Boston Center is concerned about an unidentified aircraft flying in from the east, approaching Cape Cod. Colin Scoggins, the military liaison at the Boston Center in Nashua, New Hampshire, has noticed the large, slow-moving target on his radar screen. It is just off the coast and heading directly for Boston. Concerned as to what the aircraft is, he phones the Fleet Area Control and Surveillance Facility in Virginia Beach, Virginia. [Spencer, 2008, pp. 242] The facility, known by its call sign, “Giant Killer,” is the Navy air traffic control agency that handles all over-water military operations. [New York Times, 2/10/1997; Spencer, 2008, pp. 143] Scoggins says: “We have a large, slow-moving target approaching Cape Cod and heading for Boston. Do you have it? What is it?” The person at Giant Killer only replies, “We’re looking,” and then mentions, “We’ve got a fleet of ships heading toward the northeast and an Aegis cruiser [a high-tech warship] on the way.” Scoggins is worried that Giant Killer is unable to specifically identify the target he is seeing on his radar screen. It appears to be flying straight toward the Boston Center. He thinks to himself, “If I wanted to use airliners to attack a country, I would take out their air traffic control facilities!” Scoggins continues watching the suspicious aircraft on his radar screen. Shortly afterward, the Boston Center will be evacuated after the FAA’s New England regional office calls it and reports an unidentified aircraft heading toward the facility (see (Shortly After 10:20 a.m.) September 11, 2001). [Spencer, 2008, pp. 242-243] This is apparently a different aircraft to the one Scoggins is tracking. [Federal Aviation Administration, 9/20/2001; Federal Aviation Administration, 3/21/2002 pdf file] Whether the plane Scoggins is tracking is ever identified is unclear.

Entity Tags: Fleet Area Control and Surveillance Facility, Colin Scoggins

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

The Moncton Area Control Center.The Moncton Area Control Center. [Source: Nav Canada]Colin Scoggins, the military liaison at the FAA’s Boston Center, contacts NORAD’s Northeast Air Defense Sector (NEADS) and a Canadian air traffic control facility, to let them know that the Boston Center is shutting down its airspace and being evacuated, due to a possible airborne threat.
Scoggins Does Not Immediately Evacuate - The Boston Center in Nashua, New Hampshire, has just received a call from the FAA’s New England regional office, alerting it to an unidentified aircraft heading its way. In response, the center’s managers ordered the evacuation of the facility (see (Shortly After 10:20 a.m.) September 11, 2001) and declared “ATC zero,” which completely shuts down the center’s airspace (see (Shortly After 10:20 a.m.) September 11, 2001). But while others leave the building, Scoggins stays behind to make two phone calls.
Scoggins Calls Canadian Facility and NEADS - His first call is to the Moncton Center, which is the Canadian air traffic control facility that handles flights arriving from over the Atlantic. He tells a supervisor there, “We’re going to ATC zero and evacuating.” Scoggins then calls NEADS with the same information. He says: “I wanted to let you know, Boston Center has declared ATC zero and we are evacuating due to an airborne threat. It’s approaching Martha’s Vineyard and it’s coming our way.” Before hanging up, he gives NEADS the speed and coordinates of the approaching aircraft. Scoggins then heads out of the building. According to the account of author Lynn Spencer, Scoggins’s call prompts NEADS to immediately call Otis Air National Guard Base in Cape Cod, Massachusetts, and order it: “Get everything you’ve got in the air! Now!” (see (10:20 a.m.) September 11, 2001).
FBI and SWAT Teams Surround Center - By the time Scoggins is outside the Boston Center, FBI and SWAT teams are surrounding the facility. Scoggins will later recall that he sees the “Nashua SWAT team in the parking lot with automatic weapons, [and] the FBI running with the audio tapes with Bob Jones [a quality assurance specialist at the Boston Center] by their side.” [Federal Aviation Administration, 9/20/2001; Spencer, 2008, pp. 243-245] (The FBI reportedly arrived at the Boston Center “minutes after Flight 11 crashed into the World Trade Center,” and seized tape recordings of radio transmissions from the hijacked plane (see Soon after 8:46 a.m. September 11, 2001). [Christian Science Monitor, 9/13/2001] )
Scoggins Tracking Other Unidentified Plane - Before the Boston Center received the call from the FAA regional office about the approaching aircraft, Scoggins was tracking another unidentified target on his radar screen: a slow-moving aircraft also flying toward the center from the east (see (10:20 a.m.) September 11, 2001). Whether he alerts NEADS to that aircraft when he calls it is unclear. [Spencer, 2008, pp. 242-243]

Entity Tags: Moncton Area Control Center, Colin Scoggins, Northeast Air Defense Sector

Timeline Tags: Complete 911 Timeline, 9/11 Timeline

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