SECTION 26: MID FUSE RIBS & BOTTOM SKINS
PAGE 26-5
Consider at this point whether you need access holes in the F-1017 under-seat ribs for conduit and/or antenna wiring. Many builders cut holes in the F-1017 ribs for conduit passthroughs. These holes will be much easier to cut at this point.
Also consider marking and cutting/installing antenna doublers on the bottom skins in this general section. This will be much easier now than later, when the seat plates are permanently riveted in place.
If you haven't updated your plans in a while, ensure you dimple the #40 holes in the web of F-1015A. There was a revision on page 26-5 in July of 2021 that added this step.