Originally Posted by
MurphyWasRight
One can hope that the Lion air and Ethiopian investigators did such testing early on before it became widely known and discussed.
In fact the Ethiopian accident suggests that the crew was not fully aware and ready to pounce on MCAS, although in that case partial knowledge may have been deadly if it led to disabling electric trim before achieving neutral trim.
Without having to THINK, an experienced captain with sufficient manual flying skills would not need to know if MCAS, ordinary runaway stab trim or ambiguous autopilot stab trim inputs were causing the uncommanded nose-down trim. Such trim anomaly at low altitude would automatically trigger a self-preserving INSTINCTIVE response of stopping the trim-in-motion forward moving stabilizer wheel either with his knee, right thigh or right hand and simultaneously ordering the F/O to cut off the electric stab trim switches, or doing that by himself, while simultaneously clicking off the A/P and A/T.