American Airlines Flight 191 Took Off Normally—Seconds Later, Everything Changed

Some aviation disasters are remembered not only for the tragedy itself, but also for the stories and unanswered questions that continue to surround them years later.

One of the most devastating examples is American Airlines Flight 191, which crashed shortly after takeoff from Chicago’s O’Hare International Airport on May 25, 1979. The disaster claimed 273 lives, making it one of the deadliest aviation accidents in U.S. history.

The crash became the subject of an extensive investigation, and investigators ultimately identified a mechanical failure involving the aircraft’s left engine and its mounting structure as a critical factor in the accident.

Yet decades later, Flight 191 remains a haunting chapter in aviation history—not because the basic cause is unknown, but because of the sheer speed and scale of the tragedy.

The aircraft had only just left the runway when the catastrophic failure occurred. What followed unfolded in a matter of seconds, leaving witnesses, emergency crews, investigators, and families struggling to comprehend what had happened.