Riveted the left wing trailing edge. Instead of cutting the pop rivet. I've decided to use solid rivet as they are much shorter and will give a better finish anyways. Plus, it will be less work. Installed the first rib on the tank. This rib needed to have a hole dimpled, but it was too close to the bend. In order to get that dimpled, I had to grind some material off of the die. Started test fitting the wing tip rib.