You're recalling a different incident: engine-out problems are a routine part of flight training at every level. You're thinking of https://en.wikipedia.org/wi

You're recalling a different incident: engine-out problems are a routine part of flight training at every level. You're thinking of https://en.wikipedia.org/wiki/United_Airlines_Flight_232 https://en.wikipedia.org/wiki/United_Airlines_Flight_232 where so much of the plane broke that they had to invent a new way to fly it. I can't turn up a reference right now, but like you say, in the next few years that failure was repeatedly simulated, and all the simulated planes crashed. (IIRC, Haynes declined to try his hand at any of the simulations, explaining that the one time when it really mattered was enough for him.)