Ethiopian airliner down in Africa

[Loose rivets]

So what's being said is, the AoA vane hub is rotated in error by one screw-hole place?

For it to be able to be so misaligned seems impossible - for the main casting to not be designed D shaped, or have a flat edge would be deeply worrying. But it is a compelling scenario since the output error is so consistent.

I'd personally discounted damage to the vane after the second crash, and would be mystified if it were to be a mechanical problem since the vanes are so strong. They look frail, but they're anything but.
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