Ethiopian EA 302

https://www.wired.com/story/boeing-737-max-8-ethiopia-crash-faa-software-fix-lion-air/

“The solution, then, is twofold: Boeing started by warning airlines that the MAX’s angle of attack sensors had malfunctioned before, that such a failure could lead the MCAS to push the plane’s nose down, and that pilots could safely defuse the problem by cutting off the trim system and working the plane manually.

After making sure pilots knew about the problem and how to resolve it, Boeing would work on a longterm solution. Essentially, it would rejigger the software governing MCAS so that it wouldn’t be as prone to jumping into action based on one scary sensor reading, instead considering more data. And it would limit how many times it can engage.”

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