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Old 9th Apr 2019, 06:43
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gmx
 
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Well, [electrical trim] was cut out by the pilots. They had the option to re-trim the aircraft using electric trim before hitting the cutout..

Originally Posted by fgrieu
Is that sure ?
Yes, it is sure. We know this because MCAS drives the stabilizer using the electric motor, and MCAS dialed in another batch of nose-down trim AFTER the pilots re-enabled electric trim and blipped the column switches (which had negligible affect on stabilizer position). Therefore, the electric trim motor was able to drive the stabilizer with the stabilizer in its final position prior to stab trim cutout activation. As such, I think it is fair to conclude that the pilots decided against trimming back to neutral before activating the cutout (or were cognitively overwhelmed at the time and did not think to do so).

Last edited by gmx; 9th Apr 2019 at 06:49. Reason: provide additional context
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