What are these extra holes for?
 

I am working on my elevators and got to the point of match drilling the elevator horns to the front spars and root ribs.

I noticed 2 extra holes aft of the web on the elevator horns that do not look like typical tooling holes.

What are these extra holes for?



Just wanting to make sure I am not missing something....

They are explained in the infamous chapter 29. just kidding. I think they are tooling holes

On the RV 14 (based on the RV10) those are for riveting the E-01411 reinforcement doubler for the trim servo bay. should only be on your left elevator.

Thanks Pete,

I can stop worrying now. The 10 does not have those.