Originally Posted by
Matt48
I'm not sure if this has been discussed already and I've missed it, but is it possible for the electric stab trim to become stalled or overwhelmed by aerodynamic forces when there's a combination of a bit of speed and full stab deflection.
This was actually one of the first issues that I checked into when I started looking at these accidents. To date I have found no evidence to suggest that the electric motor could stall under the loads present in the accident scenarios. If you think about it, in the final stages of the Ethiopian crash the stab motor was perfectly able to move the stab to near its limit against the opposing forces.