Once you get the FL606A riveted to the flap spar, then add the two end ribs to the flap spar too. Next would be slipping this assembly into the flap top skin and clecoeing the top skin to the ribs and spar. Later, after I rivet the top and bottom skin to the root rib, I will add the FL606B,C combo to the root rib. Then it gets clamped together to the FL606A and there are 5 holes to match drill through the FL606A so it can be riveted to the FL606B,C combo. Last will be positioning the already match drilled hinge to the bottom flap spar and riveting the hinge,spar,flap skin together. Then, it's done....
