Today I drilled the seat back support plates (F-817)to their respective bulkheads. I seperated the two F-856 spacers from each other, and smoothed and deburred the edges. I clecoed the spacers underneath the cockpit rails, and clecoed the cockpit rails back in place on the fuselage, the seat back support/plates already having been clecoed back into position. I then drilled the 1/8th rivet holes to full size that were common between the cockpit rail/spacer and the seat back support. I increased the size of the rivet holes that will use AN509 screws to #19.
I drilled the four 3/16th rivet holes that are comon with each 'foot' of the seat back support and the plates they attach to.
