Originally Posted by
Vendee
Let me remind you that the "S" in MCAS stands for System.
MCAS did fail. The code may have done what it was designed for but the system (which includes the AoA vane) failed.
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.