1. If everything has been routed through the tailcone, the belly skin can now be installed. The tail cone belly skin should fit between the forward fuselage belly skin and the fuselage tubing. If installed, the step will need to be temporarily removed. Sealant is recommended in joint between belly skins and fuselage tubing.
2. Install -42 aluminum rivets where skin attaches to bulkheads and control tunnel skins. Use -43 or -44 aluminum rivets along the longerons (both sides of bottom).