Times before the plane went down 12 minutes after takeoff. In cas kicked in forcing the nose down thinking it was higher than it really was due to faulty data from just one sensor called an angle of attack sensor. A few weeks after the crash in indonesia boeing executives met with the union for American Airlines pilots to discuss the software. In this very building boeing came in on november 27th and we question. I have been the one asking the question how could you have designed a single point of failure and it quickly came back with us not the back of his you. And how responsive but we dont even know the system existed how can we be the backup for something that we dont even know exists. After the crash in indonesia but when the f. A. A. Issued a directive to 737 pilots around the world to use a known emergency checklist if in cas kicked in when it shouldnt. According to investigators the ethiopian Airlines Pilots followed that but it still didnt save them. The forces were too great