Sunday marked 46 years since the deadliest plane crash in U.S. history, and it happened near a Chicago airport.

On Halloween of 1979 — barely five months after the flight 191 ... crash was attributed to miscommunication among cockpit crew and air traffic controllers, unlike earlier incidents which were ...

The engine falling off also severed hydraulic lines that "caused a ... site of the crash," said Encyclopedia Britannica. Not counting the Sept. 11 attacks, this makes Flight 191 the deadliest ...

The crash, which the website said was caused by “unintended structural damage,” resulted in 273 deaths. American Airlines Flight 191 remains the deadliest plane crash in American history.

In 1979, another engine detachment on a DC-10 wide-body jet caused the crash of American Airlines Flight 191. In 1988, an Aloha Airlines Boeing 737 lost an 18-foot-long section of upper fuselage ...

Despite their best efforts, the left wing failed, making it impossible to achieve the lift symmetry required for a stable flight ... as the probable cause of the crash. The report also blamed ...