Originally Posted by
MechEngr
The purpose from Transport Canada seemed to be related to pilot mental overload by the stick shaker, but that opens the question of why that is not being demanded of all aircraft in operation. However, adding silencer controls does open the opportunity that the override will prevent a legitimate alert from sounding/shaking when it is supposed to. It's easy to imagine a service operation where the override is checked and not reset.
Consider that at least two aircraft have been dispatched with aileron controls reversed fresh from service (one by cable and the other fly-by-wire,) especially if this was added to a limited number of planes, there is a good chance of overrides set incorrectly and being overlooked.
But the stick shaker disconnect will trigger a EICAS alert when the override is checked and not reset……..Oh silly me I forgot the MAX is the only jet airliner in production anywhere that doesn’t have EICAS……