Boeing’s Responsibility in a Deadly Crash ‘Got Buried’

"Even a fix now proposed for the Max has similarities with the past: After the crash near Amsterdam, the F.A.A. required airlines to install a software update for the NG that compared data from the plane’s two sensors, rather than relying on just one. The software change Boeing has developed for the Max also compares data from two sensors.

Critically, in the case of the NG, Boeing had already developed the software fix well before the Turkish Airlines crash, including it on new planes starting in 2006 and offering it as an optional update on hundreds of other aircraft. But for some older jets, including the one that crashed near Amsterdam, the update wouldn’t work, and Boeing did not develop a compatible version until after the accident."

Very interesting. Another failure mode with single sensor, overacting computer and similar Boing behavior. In a way the 2009 crash and the regulator and Boing behavior laid the foundation for the Max crashes. It may be a good idea to look at any other crashes the last decade where ‚pilot error‘ was the prime reason.

The Boeing CEO at the time was James McNerney. As Boeing's first CEO without a background in aviation, he made the decision to upgrade the 737 series to 737 MAX instead of developing a new model.

Source: https://en.wikipedia.org/wiki/James_McNerney