Originally Posted by
Tankengine
Any system that winds on trim countering pilot input...
But does it? Is that
really what it does? In each case the FDR trace seems to show cessation of MCAS input for 5 secs after a "manual" (read electric or hand wheel trim). In both accident aircraft there is evidence that the Stab cutout worked as suggested as well - in the case of Lion, the day before the accident, and with ET302 in that the MCAS ceased to move the stab from the point of "cutoff" being selected, and only resumed as they reversed (perhaps understandably) their actions.
Be careful with the fundamental attribution error...