Originally Posted by SR71
Out of interest, what would the FADEC do when the AT disconnected if the No 2 thrust lever was retarded but only reached a position half-way between the climb detent and idle?
Spoilers would deploy and autobrake would work, the requirement is for both thrust levers at idle or one in reverse and the other idle or reverse or near idle (which is within 15 degrees or idle), the engine that is not at idle would still produce forward thrust, but would be closer to a level that you would use for taxi.
If you make no effort to reduce or increase both the thrust lever angles from that used for approach, nothing will happen. The aircraft is designed to be go minded, not stop minded, it assumes you want to do a touch and go or aborted landing.