A DC-10 Lost Every Flight Control at 37,000 ft. They Flew It With Throttles

19 July 1989, 3:16 PM. The tail engine of United Airlines Flight 232 explodes over Iowa and cuts all three hydraulic systems. No ailerons, no rudder, no elevators, no flaps. The manufacturer had told the regulator this could never happen, so there was no procedure. Four pilots, one of them a passenger, flew the DC-10 for 44 minutes using only the throttles and reached Sioux City. This is United 232, the “Impossible Landing”, told properly: Captain Al Haynes, First Officer Bill Records, Flight Engineer Dudley Dvorak and off-duty check pilot Denny Fitch on his knees between the seats; the phugoid; United maintenance's answer (“there isn't one”); “cleared to land on any runway” and Haynes's laugh; the beer; the closed runway full of fire trucks; 220 knots and 1,850 feet a minute; the cornfield; 184 survivors out of 296; the 285 Iowa Air National Guard members who happened to be on duty; the cockpit nobody recognised for 35 minutes; the simulator tests nobody passed; the fan disk found in a cornfield three months later with an 18-year-old flaw inside; and the idea, crew resource management, that came out of it. Sources: NTSB Aircraft Accident Report AAR-90/06, United Airlines Flight 232, McDonnell Douglas DC-10-10, Sioux Gateway Airport, Sioux City, Iowa, July 19, 1989 (1990); Wikipedia, “United Airlines Flight 232”; NTSB CVR transcript (public docket); Al Haynes, “The Crash of United Flight 232” (NASA Dryden lecture, 1991); Laurence Gonzales, “Flight 232” (2014). Times are Central Daylight Time. Casualty figures (112 lost, 184 survived, 13 uninjured) are the NTSB's. Images: real photos and diagrams are tagged REAL PHOTO on screen and come from Wikimedia Commons and US government archives: N1819U, the accident aircraft, at Newark in 1980, by Paul Seymour (CC BY-SA 4.0); United DC-10 N1819U, 1977, by Kplastique (CC BY-SA 4.0); Flight 232 flight path map, NTSB (public domain); Flight 232 fan disk, NTSB (public domain); Flight 232 seat/injury map, NTSB (public domain); Captain Al Haynes, 2012, by Wayne Russell (public domain); Flight 232 Memorial, Sioux City, by TheCatalyst31 (CC0); DC-10 cockpit, 1974, by Piergiuliano Chesi (CC BY-SA 3.0); Sioux Gateway Airport at sunset, by Djh918 (CC BY-SA 4.0); Denver Stapleton International, 1991, by Andrew Thomas (CC BY-SA 2.0); NW Iowa cornfields, by inkknife_2000 (CC BY-SA 2.0); NW Iowa corn in July, by inkknife_2000 (CC BY-SA 2.0); United DC-10 at SFO, 1989, by Bill Larkins (CC BY-SA 2.0); 185th Air Refueling Wing KC-135s at Sioux City, US Air Force (public domain); Phugoid diagram, by Almighty3691 (CC BY-SA 4.0); Sioux City skyline and Missouri River, by Tony Webster (CC BY 2.0). Other scenes are AI-generated reconstructions (tagged on screen); no real person is depicted in them. Music: Kevin MacLeod, “Heart of Nowhere” and “Ascending the Vale” (incompetech.com), licensed under Creative Commons: By Attribution 4.0 (creativecommons.org/licenses/by/4.0). Contains AI-generated reconstructions, AI video clips and AI voice narration. More from us: Backfire Docs (plans that backfired):    / @backfiredocs   Meltdown Docs (engineering disasters):    / @meltdowndocs   Root Cause Docs (history behind today's conflicts):    / @rootcause_docs