United Airlines temporarily loses communication with three of its aircraft. Andrew Studdert, United Airlines’ chief operating officer, will tell the 9/11 Commission that at around 10:00 a.m., the airline loses contact with Flight 399, Flight 415, and Flight 641. Persistent attempts to communicate with these “missing” aircraft are eventually successful. [9/11 Commission, 1/27/2004] At 10:45 a.m., the FAA’s Cleveland Center will report that Flight 641 is on the ground at Detroit Metro Airport in Michigan. [Federal Aviation Administration, 9/11/2001]
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