United Airlines flight dispatcher Ed Ballinger begins sending text messages to United’s transcontinental flights that have not yet taken off, notifying them that a ground stop, preventing any further takeoffs, has been ordered for commercial aircraft in the New York area. [9/11 Commission, 8/26/2004, pp. 37] FAA air traffic managers prohibited flights into or out of New York after the second plane hit the World Trade Center (see (9:04 a.m.-9:11 a.m.) September 11, 2001). [USA Today, 8/12/2002] Ballinger, who is working at the United Airlines System Operations Control center just outside Chicago, is responsible for monitoring United’s aircraft that are flying from the East Coast to the West Coast. [Wall Street Journal, 10/15/2001; Chicago Daily Herald, 4/14/2004; 9/11 Commission, 8/26/2004, pp. 23]