This is fairly straight forward but the Figure on 8-09 is hard to visualize. We used the figure on 8-10 to visualize how it was supposed to go together. The riveting was straight forward with the 470 rivets but the 4 corner rivets were tough to get to but since the head of the numatx squeezer is much smaller than the pnueumatic squeezers I was able to use the longeron yoke and fit it in the tight space to squeeze it. I did however attempt to buck the first one since I didn't think the squeezer would fit. Ended up leaving a smiley face so I drilled it out and was able to use the squeezer. Gotta get better with the cupped riveter.