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by inferiorhuman 2362 days ago
The electric trim switches override MCAS.

They pause MCAS but do not disable or override it it. The trim switches move the stabilizer slower than MCAS activation thus as seen by the Ethiopian and Lion Air crews using the electric trim switches is tantamount to fighting a losing batle.

1. use the electric trim switches to set the trim to normal

What happens when the electric trim switches don't work? They didn't in the Ethiopian crash.

runaway trim does not need definition, Boeing does not define it.

Sure they do, it's in the QRH plain as day.

Condition: Uncommanded stabilizer trim movement occurs continuously.

MCAS activation isn't continuous, especially not if you're pausing it with the trim switches.