The FAA’s New York Center informs the air traffic control coordinator at United Airlines’ headquarters, outside Chicago, that Flight 175 is missing from radar. Although Flight 175’s transponder signal changed at around 8:47 (see 8:46 a.m.-8:47 a.m. September 11, 2001), according to the 9/11 Commission the air traffic controller handling the flight only noticed the change at 8:51 (see 8:51 a.m.-8:53 a.m. September 11, 2001). [9/11 Commission, 8/26/2004, pp. 21-22]
International Center for 9/11 Justice
Stay Informed
Sign up to receive updates and hear about ways to make a difference.
Your information will remain confidential and will not be shared with any third parties. Privacy Policy
International Center for 9/11 Justice is a 501(c)(3) nonprofit.