For reference, I believe this is the crash you're referring to: https://en.wikipedia.org/wiki/Air_France_Flight_447 https://en.wikipedia.org/wiki/Air_France_Fli

For reference, I believe this is the crash you're referring to: https://en.wikipedia.org/wiki/Air_France_Flight_447 https://en.wikipedia.org/wiki/Air_France_Flight_447 The fly-by-wire control system ordinarily prevents stalls, but it had disengaged due to an iced over sensor and was operating without stall protection. The plane stalled at 38,000 feet and fell into the ocean. They should have had plenty of time to correct the stall, but one pilot was pulling back his control stick (the opposite of what they needed to do), and since the two sticks aren't physically linked the other pilot didn't know he was doing that. It's one of the topics discussed in the podcast that I linked above.