Before riveting the bottom skins there were some tasks to finish first.
I was concerned that the transition from the stringer and rib 9 caused a dent in the bottom skin. As I saw on other builder blogs I trimmed the stringer and a small piece of the rib flange:
The edge distance of the hole for the grommet wasn’t that much and since I want to use shielded cable for the landing and taxi lights (which is thicker) I needed to enlarge the hole. That would compromise the edge distance even more. I designed 2 small brackets and checked with TAF if this change is approved; which it was.