Originally Posted by
tdracer
Any switch that has the capability to shut down both (or all) engines has a failure mode that will do exactly that when it shouldn't. As I wrote before, do you really thinks its a good idea to design in a failure mode that will cause the loss of all engines?
It would also violate a several FAR/CSs...
Heck, even with the action of two, independent switches required to shut down both engines, there have been at least two cases when the pilots shut down both engines in-flight when they meant to do something else...
adding to that. One of the basic tenants of aviation safety is redundancy. Where is the redundancy in one switch killing off everything