Salute1
@FCeng I got the 40 seconds and it is what I posted - 10 ,seconds without pilot trim switch,5 second rest, 10 seconds of trim with no pilot trim, 5 second rest and then 10 seconds trim without pilot trim. That would move the stab well over 5 degrees if stab was trimmed just above zero, but could max it out if trim was zero or more nose down.
One thing all 737 pilots need to understand is this
One of the key elements to the baseline MCAS logic is that it will only put in a single increment of stabilizer motion as long as no pilot trim command is given.
And then tell them that if the trigger event/value is still present that the process repeats.
Those Lion troops did a good job but for treating the problem as an MCAS quirk or STS working backwards as previous crew asserted, or a "runaway trim" that was not continuous. And besides, if they had heard about MCAS, then it was suposed to work making steep turns or slowing way down at cruise altitude or whatever and not be a stall prevention gizmo, and not activating just after flap retraction on takeoff.
Hoping new computer folks at Boeing do a better fault tree analysis this time.
Gums sends...