Originally Posted by
MechEngr
....
At the time of ET-302 it wasn't a latent defect. It was clearly exposed.
No, it wasn't.
The instructions only worked, when it was immediately recognized what the issue was. After that, the airplane was doomed.
The Boeing instructions not even considered the aspect of delayed recognition of the problem.
You know, there are reasons why the B737MAX was grounded for 18+ months (and in China 2+ years):
THERE ARE NO SUITABLE INSTRUCTIONS POSSIBLE to realistically overcome the AoA vane mishap.
IIRC later on, in a flight simulator, experienced pilots did have to react within 4 seconds after an AoA vane mishap, to be able to save the aircraft.