Originally Posted by ryane67
So in that case it's talking about all of the rib to spar mating holes?
I did that step 42 months ago so I don't remember for sure, but I believe it means all of those holes. The RV-14 vertical stabilizer is mostly RV-7 part numbers so there is lots of match-drilling to do. Looking ahead to page 06-05 figure 1, the rivets are AN470AD4 and LP4, so #30 holes would be appropriate.
When in doubt about what a hole is for or what to do with it, read through the rest of the section of the plans (or sometimes farther, even into other kits--this is where having the complete PDF plans at the beginning is important) to see what makes sense.