PPRuNe Forums - View Single Post - MAX’s Return Delayed by FAA Reevaluation of 737 Safety Procedures
Old 2nd Oct 2019, 15:53
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ST Dog
 
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Originally Posted by Tomaski
the revised MCAS software will be able to move the stab the same amount, but will be subject to more “checks” (dual AOA, speeds) before it does so and will only be able to make this input once, as opposed to repeatedly, as it could in the original version
I'm still looking for more info in that. Best info I can find, the original version only activated once until reset.
Returning to some lower AoA would reset (and back out the added trim).
Manual electric trim would reset (on the assumption that the pilot was trimming to a proper state).

So the repeated activations on the 3 problem flights were all because the pilot input some counter trim, resetting the system.

So what will be the new reset options? (I asked similar about the KC-46 system which is claimed to have some way to prevent multiple activations. And does anyone want to hold the KC-46 up as a good program?).
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