Originally Posted by
GordonR_Cape
A third AOA would only have worked if the Boeing 737 MAX had new flight control computers like other models (including Airbus). That was never going to happen, due to the huge cost, certification and training issues. I never implied that 3 AOA sensors have no function, but unless the system architecture can process and vote on them, the third one has no purpose.
I bet Boeing wished that they had spent that extra cash now!