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Old 5th Apr 2019, 13:58
  #3313 (permalink)  
Avionista
 
Join Date: Nov 2006
Location: Scotland
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Having read most of the comments on this thread, my general conclusions are:

1. The crews flying JT610 and ET302 were reasonably well trained and experienced in flying B737 aircraft. Their flying skills could be characterised as representative of the "Average Pilot" within the total population of B737 type-rated pilots.
2. The MCAS system, as implemented on the B737 MAX, is extremely dangerous and should never have been certified on a passenger carrying aircraft. If it activates due to a sensor or system fault at the 'wrong' or disadvantageous moment during a flight, the aircraft can become unrecoverable.
3. Any automatic system that is permitted to control the horizontal stabiliser of a passenger aircraft should be required to have a fully redundant (triplicated) sensor/control system.

To make the B737 MAX safe/certifiable, the FAA and Boeing should consider the following steps:

1. Remove the MCAS system in its entirety.
2. To comply with FAR regulations concerning stick force as the aircraft approaches a stall AoA, Boeing should:

(a) consider aerodynamic changes to the airframe;
or
(b) develop a 'stick pusher' solution.

In addition to fixing the B737 MAX, Boeing should set their designers and engineers to work on building a completely new state-of-the-art replacement for the B737.
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