Removed avionics an electrical equipment from the tailcone and unfastened wire harnesses in preparation for riveting the upper tailcone skin in place.
After much deliberation I decided to make the floors removable, or at least the aft baggae floor removable. Drilled out the blind rivet holes in the baggage rails to #19 for #8 screws. Used a nutplate jig to drill the nutplate rivet holes. Countersank the #19 holes and rivet holes in the baggage ribs. Attached the nutplates to the baggage ribs. Drilled out out the blind rivet holes in the aft baggage floor to #19 and dimpled them. Fastened the floor to the baggage rails with flush screws.