> turning MCAS back on This was not a mistake, and it's wrong to characterize it as correct procedure not followed. a. Strictly speaking, MCAS cannot be turne

> turning MCAS back on This was not a mistake, and it's wrong to characterize it as correct procedure not followed. a. Strictly speaking, MCAS cannot be turned off. Autotrim can be turned off. b. It's more clear than not, from at least the preliminary report on ET302, that the forces from MCAS induced mistrim at Vno were too high to manually retrim at the altitude they were at. The mistrim recovery maneuver requires releasing back pressure on the yoke to reduce the mistrim force in order for manual retrim to be possible. The transcript fairly clearly (not conclusively) suggests manual trim wheel would not budge. They were already at Vno at a low altitude, and it is reasonable they chose to reenable autotrim in order to gain leverage from the electric motor to overpower the wedged jackscrew. At 05:43:11 (page 26 of the ET302 preliminary report) you can see two small trim events which are pilot yoke trim toggle switch electric motor assisted trim events; followed ~4 seconds later by an MCAS induced nose down trim that was a complete obscenity. It was so extreme that the vertical acceleration sensor reports negative values. Only by being strapped in did they not hit the ceiling. That's how aggressive this last nose down MCAS initiation was, and within seconds later they were at 40 degrees nose down. For any automated system to have moved the stabilizer trim this much at Vno is a deeply flawed system. If a human pilot did the same thing in the same situation it would be considered attempted homicide, there is no possible alternative outcome but death for everyone. You can correctly say: too bad they did not have our extreme mistrust of this MCAS system, too bad they did not realize at the time the extent of the betrayal they were facing. It is more clear than not that they still didn't know the details of how this system worked, that's why they didn't immediately return trim stab to shutoff after their two nose up trims. It's flat out wrong to say the pilots did not follow proper procedure. They did follow it in the ET302 case. It didn't work. They almost certainly had to reenable stab trim, because the manual trim was stuck due to mistrim forces.