Hi Carl!
The gentleman looking for this part never responded to the above post or to PM's that I sent him, so it is available to you if you are interested.
I also have the right side of the assembly, shown below (figure 15-12 0411323, cover assembly - flap control - right) , but it has a latch assembly attached at the front for what appears to be the push button lever operation. It appears a part has been removed from the holes in the lower front of the piece.
These parts are in the exploded view of the twist handle unit in the parts manual, but I have no experience with this type of flap handle. Just happened to get these in a box full of parts I purchased a while ago.
I've sent you a PM.
Steve A H

- Flap control assembly right 1a.JPG (24.43 KiB) Viewed 2077 times
[attachment=0]Flap Control Assembly Right 2a.JPG[/attachment