PPRuNe Forums - View Single Post - MAX’s Return Delayed by FAA Reevaluation of 737 Safety Procedures
Old 19th Sep 2019, 15:36
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RatherBeFlying
 
Join Date: Sep 2001
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Originally Posted by ST Dog
Only MCAS bypasses the column cutout (by necessity). All other trim functions operate the same.

You may not have meant to, but you implied that no trim functions would stop, as if the cutout was no longer there.
Deep in the MAX threads there's AFM and circuit diagrams that may confirm that trim can still be blocked by the column cutout, that MCAS bypasses.

One human factor that escaped the MCAS designers is the cockpit confusion and startle factor when an apparent trim movement can't be stopped by the column cutout, behavior that was not documented
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