This giant chapter is finally done. For the most part it was fun but there were some really tricky rivets to set. I also regret insisting to try and back rivet all the baggage ribs even after I started seeing some bad results. Now I have 5 oops rivets and 4 426 4-4 rivets instead of the specified 426 3-3.5.
With the help of my wife the last around 60 rivets went really quickly and with perfect result. Unfortunately no camera around for that part. Later I finished of riveting the last stiffener and ribs before continuing with chapter 27.
I think I have separated all the parts in chapter 27 now, all blue plastic is gone, some countersinking is also done.