sgrow787 wrote:If the sensors that help detect a stall or impending stall - ie AOA sensors - aren't working, then how can you pay attention to them? If you've got a stall prevention system - ie MCAS - that uses data from those sensors, _and_ it can't - whether a sw bug or a bad design - effectively choose the good sensor out of two available, .... what are you as a pilot suppose to do?
Fly pitch and power, disable stab trim, land asap.
sgrow787 wrote:I believe MCAS was designed to be using source selection on two redundant AOA sensors, and that somehow Boeing didn't do all the work - system design, software development, verification - to make it a realization.
That is an unhinged belief. You have no insight into what the MCAS designers wanted as far as AOA reliability; but we must assume that they knew how the rest of the 737 flight system was designed. The solution to a failing AOA sensor is to disable stab trim. It is not a problem without a solution.