Fabbed a wooden hinge pin stop. The final product will be a delrin or plastic block that will secure the aft end of the pins to keep the pin from vibrating out. Fit check the right wingtip rib into the wingtip to check and trim the hinge pins. Finalized location of hinge pin anchor block and marked for screw and nutplate. Drilled both ribs for #10 nutplates. Will wait to drill hole to final size and match drill to anchor block.