Originally Posted by
ST Dog
Big assumption, unsupported by evidence.
Complex systems where few understand it all, assumptions that others did things a certain way, stovepipes.
I doubt anyone really understood the danger.
then this is even more scary. Nothing like an aircraft should be built and put into service where the manufacturer does not understand themselves how it works, where the risks are, and how the risks are being managed. This is not a Lego project done at midnight for kindergarten class! Any large manufacturer should have layers and layers and layers of inspection and review of design and safety and manufacture, within safety systems, at every level. B stress their proud heritage of building safe aircraft when selling their wares, looks like it was smoke and mirrors.
Any half decent engineer working on this, and looking at the reliance on one AOA vane, a part frequently bashed on the ground or by birds, would know the design is flawed. The Turkish crash at AMS proved how one sensor is never a good idea. Never mind moving a primary control surface just so it could provide feedback to the yoke, just because the bits and pieces were already there. MCAS was not dropped in one night by a guy with a lightbulb moment. Hundreds of highly skilled experienced people would have been in on it. Why did not one man/woman speak up?
G