ORIGINAL: tschuy
Drill out the holes to fit an larger size dowel that will completely fill the miss drilled holes. One can go to either Lowes or Home Depot and find hardwood dowel relatively cheap. Once the holes are filled then redrill the holes to match the ones that were drilled in the wing.
That's pretty much what I was going to suggest.
Big dowel (you know how big it will need to be).
drill hole up centre. Preferably on lathe.
Cut thin washers from end or find washers of same size.
Position wing accurately and screw down using washers.
Mark wing with pencil around washers.
Remove wing, cut out holes to diameter of dowel.
Test fit dowels and cut to required length and taper.
Epoxy in place with wing correctly aligned and screws only gently tightened.
make fair.
Go fly.
I actually do this "before" I make a cxck up! it provides a firm and durable screwing point.