Originally Posted by
Water pilot
It is a bit odd to be blaming an aircrew in Ethiopia for not providing information that Boeing engineering already knew!.
Agreed.
Except...that Boeing probably didn't know either. I seem to remember that the possibility of an AOA vane/signal failure had not been tested nor been part of an FMEA.
They had just provided the "just run the Stab Runaway procedure". Which had not been properly tested on the MAX.
Nobody knew what would happen in case of nuisance MCAS activation.
And considering their difficulties trying to fix things up, they might still not quite know...