3 ms·
It is a critical system. Part of the problem is that AOA sensors and MCAS were never considered critical before the software changes made for the 737 MAX and up
by rpiguy 7y ago
It is a critical system. Part of the problem is that AOA sensors and MCAS were never considered critical before the software changes made for the 737 MAX and uprating them to critical was overlooked (which would have forced a lot more testing of them).
There is no established requirement that says software can't be used to correct for pitch up on acceleration. The software just has to work properly.
- dylan604 7y ago> uprating them to critical was overlooked (which would have forced a lot more testing of them). Was this "overlooking" accidental or designed specifically to ignore the forced testing? This is the question that might be hardest to answer, but would justify criminal charges for the deaths in my mind.
- rpiguy 7y agoTrue. Would be impossible to prove without a whistle blower. Boeing hasn't been charged with a crime so there won't be any subpoenas of e-mail records, etc. It is within the realm of possibility, but I certainly hope that was not the case. I lean very slightly toward thinking it was an accident as the whole program was rushed and give the engineers the benefit of the doubt (innocent until proven guilty) - however, it would not take much evidence to sway my mind.