Originally Posted by
Octane
Perhaps the 3rd set of eyes in the first Lion Air incident spotted the trim wheels whirring away in the nose down direction and realised what was going on whilst in the accident aircraft the 2 crew in the mayhem didn't..
Or to put it another way:
A flight engineer is needed to watch the trim wheels and if necessary switch off Stab Trim, as pilots do not switch off the Stab Trim even after repeated uncommanded nose down stab trim starts making it close to impossible to pull the yoke back and keep the aircraft level
is that what you meant?
Or was the third set of eyes the only one not saying: "
it can't be runaway trim as that is continuous and this is repeated - so we won't do that checklist and switch off the Stab Trim"