Originally Posted by
Rananim
Boeing obviously considered the consequences of a faulty
sensor and its effect on MCAS prior certification.They knew
this would occur at flap retraction at low altitude and would result
in stick shaker,unreliable airspeed and considerable and
unexpected nose down trim all at once.
It's not obvious to me that Boeing considered those possible consequences and it's not at all clear that any or every failure of an AoA sensor -- or another fault in raw data or processing upon which MCAS activation is dependent -- would result in identical systems behaviors, always in a single phase of flight. In fact, with all due respect, I seriously doubt whether either of those assumptions is defensible.