Originally Posted by
tdracer
Actually, the mechanical interlock requiring the throttle to be at idle before you can raise the reverse piggyback lever is a design feature on every Boeing Commercial airliner ever built - 707 to 787 all have the same feature (although the detailed implementation varies a bit).
The motion to deploy the reversers is to pull back and up - how much brain power does it take to make the 'pull back' part to insure the lever is at the idle stop?
In 29 years of flying Boeing aircraft I’ve never heard of or seen anybody have a problem.