Originally Posted by
MechEngr
MCAS met it's system specification and worked according to what the developers expected of it. The expectations were incomplete. I believe I covered the need for the specification to be managed and that humans are involved in that. So, no, the MCAS system did not fail. The development system for MCAS did. Now that a new factor has been added, the new system will likely handle the new factor.
Of course we are playing on words here.
Considering that the MCAS was - among other rather vague purposes - meant to provide the same aircraft behavior as the 737NG, one could object that the end result wasn't especially "NG-like", hence the idea that the MCAS failed and has to be changed.
And the change doesn't look like trifle, does it ?