Originally Posted by
patplan
Well, actually this Ethiopian investigation is almost as leaky as the Indonesian one... The main suspects are very much the same: AOA reading and MCAS.
Since MCAS, in its past iteration, after being fed by erroneous data by a single AOA vane, have a knack to drive the trim mechanism to the end of the jackscrew, essentially doing its job as programmed spectacularly "well", that will leave the AOA vane as the fall guy.
Except..., it is ALMOST IMPOSSIBLE for the vanes which had been in used since forever and thought to have been very reliable would be implicated as the cause for the two crashes within the span of 5 months. This will leave us with something else more plausible as the caused but has been largely ignored: the Max-8 flight control system or something therein...
Except the AOA is not hooked up to MCAS on the NG