Airplane Crash - Chicago O'Hare, Illinois 05/25/1979

Details of airplane crash/ shootdown - Chicago O'Hare, Illinois


Date05/25/1979
Time15:04
LocationChicago O'Hare, Illinois
OperatorAmerican Airlines
Flight #191
RouteChicago, IL- Los Angeles, CA
TypeMcDonnell Douglas DC-10-10
RegistrationN110AA
Cn/In46510/22
Aboard271
Fatalities271
Ground2
SummaryDuring takeoff just, as the plane lifted from the runway, the left engine and pylon separated from the aircraft damaging the wing and hydraulisystem which caused the aircraft to roll and crash. Highest single plane death toll in U.S. aviation history. Asymmetrical stall and the ensuing roll of the aircraft because of the uncommanded retraction of the left wing outboard leading edge slats and the loss of stall warning and slat disagreement indication systems caused by separation of the engine and pylon. Improper maintenance procedures used by American Airlines when dismounting the engines for maintenance, by removing the pylon and engine together, putting strain on the engine mounts leading to stress cracks.

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