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Yeah. Normally there’s a swiss cheese model where multiple failures had to line up together to make a problem. MCAS was the only non-flight-crew-related problem I’ve ever heard of where it was just one thing. One thing failed, the plane flew itself inexorably into the ground, everyone’s dead, the end.

And, engineers involved tried to raise the alarm that it was a problem.

The whole history of the decision-making that led to the MCAS system made it clear to anyone who’s ever worked in an engineering organization that more failures were coming. The engineers saying “This is a problem, don’t do it this way” and the management saying “STFU, I’m in charge, do as I say” never, ever leads anywhere good.