Douglas DC-10 crash, Jul 19, 1989 (111 killed), Sioux Cit...
Douglas DC-10 accident on July 19, 1989 near Sioux City-Gateway, Iowa, United States with 111 fatalities. Cause: Fatigue cracking of the No. 2 engine...
- Date: July 19, 1989
- Aircraft: Douglas DC-10
- Location: Sioux City-Gateway, Iowa, United States
- Fatalities: 111
- Phase of flight: Approach and landing
- Cause: Fatigue cracking of the No. 2 engine stage 1 fan disk, originating from a metallurgical defect introduced during manufacture, with the NTSB also citing inadequate human factors consideration in the engine overhaul facility's inspection and quality control procedures.
United Airlines Flight 232, a DC-10 flying from Denver to Philadelphia with a stop in Chicago, lost its tail mounted No. 2 engine when the stage 1 fan disk disintegrated. Debris severed all three hydraulic systems, and the crew steered using engine thrust alone. The aircraft crash landed at Sioux City, Iowa, and 111 of the 296 people on board died.