As with most aviation accidents, you always have a chain of things that have to fail. If memory serves, any one of the following would probably have prevented t

As with most aviation accidents, you always have a chain of things that have to fail. If memory serves, any one of the following would probably have prevented the accidents: - if Boeing would have designed MCAS better - if anyone inside Boeing or the FAA would have flagged the bad design before the accidents - if Boeing would have enabled the "Angle of attack sensor disagree alert" by default on all MAX airplanes (https://aviation.stackexchange.com/questions/64020/is-the-737-maxs-aoa-disagreement-warning-light-an-actual-light https://aviation.stackexchange.com/questions/64020/is-the-73...) - if the issues with the AOA sensors on the crashed planes would have been fixed before the accidents