United Airlines flight dispatcher Ed Ballinger is informed that Flight 93, which he is responsible for monitoring, is heading for Washington, DC. At the United Airlines System Operations Control (SOC) center, near Chicago, dispatch manager Mike Barber tells Ballinger that Flight 93 is “off track, heading for DC.” The aircraft has just reversed course (see (9:36 a.m.) September 11, 2001) and, having learned that it is not responding to FAA communications (see (9:30 a.m.) September 11, 2001), officials at United Airlines headquarters now believe it has been hijacked. [Wall Street Journal, 10/15/2001; 9/11 Commission, 7/24/2004, pp. 456; 9/11 Commission, 8/26/2004, pp. 41] Also at this time, a United dispatcher who is assisting Ballinger sends a text message to Flight 93, asking, “How’s the wx [weather][?]” and, “Can dispatch be of any assistance?” No response is received. [9/11 Commission, 1/27/2004; 9/11 Commission, 8/26/2004, pp. 41]
9:40 a.m.-9:41 a.m. September 11, 2001: Airline Dispatcher Again Warns Flight 93 to Secure Cockpit
United Airlines flight dispatcher Ed Ballinger sends two messages to Flight 93, which he is monitoring, warning its pilots (who in fact are no longer in control of the plane) to secure the cockpit. At 9:40, he sends the text message to Flight 93: “High security alert. Secure cockpit. Two airliner hit NY Trade Center. And 1 aircraft in IAD missing. And one in EWR missing… too. UAL 175/93 missing.” A minute later, he again sends this message to Flight 93, but with “UAL 175/93 found” added at the end. [9/11 Commission, 8/26/2004, pp. 43] “IAD” is the code for Washington’s Dulles International Airport, from where Flight 77 took off, while “EWR” is the code for Newark Airport, from where Flight 93 took off, so presumably it is these missing aircraft that Ballinger is referring to. [Federal Aviation Administration, 9/17/2001 
] Ballinger sent previous warning messages to Flight 93 earlier on, telling it to “Beware any cockpit intrusion” at 9:23 (see 9:23 a.m.-9:26 a.m. September 11, 2001), and to “Secure cockpit” at 9:33 (see 9:32 a.m.-9:33 a.m. September 11, 2001). [9/11 Commission, 8/26/2004, pp. 37 and 39]
9:50 a.m.-9:51 a.m. September 11, 2001: United Airlines Dispatcher Warns Flights to Land at Nearest Airport, Told Flight 93 Possibly Hijacked
United Airlines dispatcher Ed Ballinger sends messages to the flights he is responsible for, telling them to land, and is also informed that Flight 93 is possibly hijacked. At 9:50, Ballinger sends a text message to Flight 93 and United’s other transcontinental flights, instructing them to “land ASP at nearest UAL airport—ORD terrorist.” (“ASP” is presumably short for “as soon as possible”; what “ORD” stands for is unreported.) The message also warns to beware of cockpit intrusion, stating, “No one in to cockpit—Land asp.” Over the next minute, Ballinger sends two more text messages to his flights, advising them to land as soon as possible. He still receives no response from Flight 93. United Airlines ordered that all its aircraft be grounded about five minutes earlier (see (9:45 a.m.) September 11, 2001). [9/11 Commission, 1/27/2004; 9/11 Commission, 8/26/2004, pp. 44] However, Ballinger will later say that United dispatchers are told by their superiors, “Don’t tell the pilots why we want them to land.” [Chicago Daily Herald, 4/14/2004] Also around this time, Rich Miles, the manager at United’s System Operations Control center, informs Ballinger about a call recently received by United’s maintenance facility in San Francisco, from an attendant on Flight 93, who reported that her plane had been hijacked (see 9:35 a.m. September 11, 2001). [Wall Street Journal, 10/15/2001; 9/11 Commission, 8/26/2004, pp. 43]
10:10 a.m.-10:11 a.m. September 11, 2001: Dispatcher Tells Flight 93 Not to Divert to Washington
Unaware the aircraft has crashed, United Airlines flight dispatcher Ed Ballinger instructs Flight 93 not to divert to Washington. At 10:10, he sends a text message to Flight 93, stating: “Don’t divert to DC. Not an option.” A minute later, he resends this same message to it. [9/11 Commission, 1/27/2004; 9/11 Commission, 8/26/2004, pp. 46] Someone on Flight 93 had contacted the FAA at 9:30, requesting a new flight plan with the destination of Washington (see 9:30 a.m. September 11, 2001), and at 9:55 the pilot hijacker reprogrammed the plane’s navigational system for the new destination of Washington’s Reagan National Airport (see 9:55 a.m. September 11, 2001). United Airlines will not confirm that Flight 93 has crashed until around 10:15 (see (10:07 a.m.-10:15 a.m.) September 11, 2001), and will notify its employees of this at 10:17 (see 10:17 a.m. September 11, 2001).
