This is the other side of the elevator. You have to get a bucking bar inside the elevator through this opening which is very tight. The opening by the way will be where the electric motor (servo) is mounted that will operate the trim tab. I am going to make another yoke and remount it. I got an offset rivet set from Arnie Clark for the top that allows you to rivet around corners. Hopefully that will do the trick. This is also a place where an extra set of hands would have made a big difference.