Originally Posted by
pangolin
The porpoise maneuver to unload the stab was not taught. I agree they should have pulled the power back. However the full recovery was not trained and will only be trained for everyone after Boeing releases it.
There was no need to "porpoise" anything. Counter the trim action to stop trim; it can be done with the control wheel trim switch. Cutoff stab trim. Adjust trim manually. Maintain speed.
Even a caveman can do it. It doesn't matter why the trim moved uncommanded; the procedure is the same. Not really rocket science.