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"The aircraft's computers received conflicting information from the three angle of attack sensors. The aircraft computer system’s programming logic had been designed to reject one sensor value if it deviated significantly from the other two sensor values. In this specific case, this programming logic led to the rejection of the correct value from the one operative angle of attack sensor, and to the acceptance of the two consistent, but wrong, values from the two inoperative angle of attack sensors. This resulted in the system's stall protection functions responding incorrectly to the stall, making the situation worse, instead of better. In addition, the pilots also failed to recover from an aerodynamic stall in a manual mode in which the stabilizer had to be set to an up position to trim the aircraft. But only the stick was applied forward but aircraft didn't trim itself because it was switched to full manual mode. Seconds later the plane crashed into the sea."
My point being that automation, whether its working as intended or not still poses a risk based on any number of factors. Pilots, maintenance, weather, etc.. We do not know if sensors on the plane, poor maintenance, uninformed pilots, etc.. caused the 737 max crashes or if it was software that caused the crashes. In both Boeing and airbus, however, the pilots have the option to turn off electronic control of the system. Is the 737-Max using two switches near the fuel cut off switches to disable the system itself. The Pilots have manual control of the plane, Always, if they want it.
The YEARS spent with the planes before they EVER get in the hands of airlines is crazy. To fully blame Boeing before conclusive evidence is laid out on either crash is not the answer. They have to release a "fix" which, for all we know may just disable to M.C.A.S completely, until the investigation is complete. Patience is the game now.