Drew the centreline on the left and right F-713 auxillary longerons so I could see the centre line through the rivet holes, measured and cut the longerons to size and drilled and clecoed to the skin. Made the left and right F-717 lower longerons, cut and using a die grinder with scotchbrite wheel, smoothed of the edges. Started to cut one of the F-684 brackets, these take a little bit of care and effort too get just right, slight bend here and there too get it to fit just right. I then peeled back the skin tho be able to drill it. One down one to go.
