Today I completed drilling the remaining rivet holes for the aft deck. The deck and spacers were removed and all parts deburred. I completed some riveting on the aft section and then remounted the aft deck and stiffeners. These were then riveted to the main longerons and cross angles.
Next I cut the side rail gussets to shape, then inserted them in the side rails and drilled them. Side rails and gussets were removed and deburred, then clecoed back to the main longerons. The side rail and gusset for the left side was riveted to the main longerons.