The money quote: The anti-stall system, created to compensate for the Max’s large new engines, will push down the nose of the plane if the angle of attack sens

The money quote: The anti-stall system, created to compensate for the Max’s large new engines, will push down the nose of the plane if the angle of attack sensors indicate the plane is dangerously close to stalling. But the system relied on only one of the two angle of attack sensors, introducing a potential single point of failure into a critical flight system. And the anti-stall system was also changed late in the design process to make it much more powerful.