The remaing parts of the spar box and main gear weld mounts were installed and cleco'd. then started riveting various parts of the spar box. Started by riveting the horizontal support angle across the top. The 3 rivet holes on each out side edge were left un-installed as these are solid rivets that will be installed later. The side fuselage skin angles and gussets were riveted.....or until I ran out of CCP-46 rivets! I searched the entire garage for any stashed away, but couldn't fine any. I ended up placing an order with Wicks. Now the long wait until the order arrives!