Originally Posted by
infrequentflyer789
It isn't, those tests only identified the need for original (AOA + g) MCAS, the later requirement for MCAS activation on AOA alone, and at lower speeds, was only identified during actual flight tests, hence the late changes rushed through under pressure.
So surely in that case the bare without MCAS test has already been done when they discovered that effect? And anyway, by now after several months of grounding, someone somewhere must have confirmed the MAX without MCAS enabled so the problem is known but does not have a simple solution.