TryingToLearn
. . . That's how the MCAS fault showed up . . .
Just a small nit-pick. MCAS didn't fail. At all times the software did exactly what it was written to do. The vane failures happened to parts that were at the time NOT designated in the 'Catastrophic' range. The final two failures of the vanes were cause by completely disparate mechanical issues. To be on that close timescale was a bizarre coincidence but one that may have caused a much more rapid and accurate set of investigations. Saying that two accidents being close together is a good thing becomes a rather unsavoury philosophic argument.