Sanded the edges and rounded the corners on the L/H and R/H taxi/ recognition light brackets. Drilled the three holes to a #10 and the other four holes to a #28 for the #6 screws. I used a #10 nut plate jig for the three larger holes and installed the nut plates with #3 solid rivets (20470-3-3). Those rivets didn't need to be flush because nothing will be screwed against it.