Riveted left flap frame together then rolled the edge. I should have drilled the ribs first but this will still work out. Bent the trailing edge until the skins layed flaton the ribs. I tried this on the right flap but was afraid to put to much pressure. This one turned out better.Clecoed skin to frame and drilled bottom to 40. I used a 5 foot stright edge to hold the skins down as I drilled hopeing to get a better fit on this one than the last. Turned the flap oved and blocked in place.