Ethiopian Airlines 737 MAX Investigation Preliminary Report
> The  crew  performed  runaway  stabilizer  checklist  and  put  the  stab  trim  cutout  switch  to cutout position and confirmed that the manual trim operation was not working.This is very damning to Boeing. It's precisely the procedure they prescribed and intended to mitigate possible MCAS caused trim runaway. In light of the fact that they put this in place as a justification for moving the engines forward without reclassifying the plane, I don't see how they can get around fault here.What a tragedy.I can't imagine the emotion those pilots must have felt after attempting to do exactly what they were told to do to keep the aircraft in the air, only to have the nose lurch back downwards. Godspeed, gentlemen. It wasn't your fault.