PPRuNe Forums - View Single Post - MAX’s Return Delayed by FAA Reevaluation of 737 Safety Procedures
Old 18th Jun 2019, 00:40
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ARealTimTuffy
 
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Originally Posted by cessnapete
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Not sure what aviation experience you have. All aircraft reduce from Take Off power early in the climb out. Reducing power does not produce a massive Pitch Down event that you imply. Any small pitch effects are handled easily with no problems. I flew the B747 for many years, much higher thrust engines than the B737, any pitch moment with power changes were a non event in manual handling.
In your comment above, when the erroneous Stick Shaker event occurred it should have been quickly apparent ( normal take off and acceleration, Ground Speed readout on your primary flight instruments) and a perhaps delayed, but normal reduction of TOGA power, which would have made the crews day a lot easier. MCAS took no effect until flap retraction.

The 737 max has substantial power/pitch coupling. It are also non event, aside from some trimming, when the flight controls are working correctly. In this case they weren’t.

Having said that I doubt that that was the reason the crew didn’t reduce the thrust. I find it unlikely that the crew had that much extra mental capacity. They were likely focused on the immediate stimulus and overlooked it. Read accident reports, watch simulator training, watch how you and your colleagues react in the real aircraft. The one big thing they all have in common is we are human.
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