What Caused The Crash Of American Airlines Flight 191?

The crash of American Airlines Flight 191 near Chicago, Illinois, in May 1979 remains one of the deadliest accidents in aviation history. The Los Angeles-bound flight, operated by a McDonnell Douglas DC-10, crashed just after takeoff after one of its engines detached. The tragedy resulted in 273 fatalities, but how exactly did it happen? Let's take a look back in time to examine the causes of the crash.