Today I fixed my mistake of drilling the hole in HS-708 to HS-603PP too large. I fluted, straightened and deburred the new HS-708 I received from Van’s. After doing that I reassembled the entire right side skeleton of the horizontal stabilizer. I re-drilled all the holes necessary in the HS-708 rib. I then clecoed on the HS-801PP skin and drilled the holes from the HS-603PP to the HS-708 rib to the proper size of #21. I then match drilled all the holes from the HS-801PP skin to the HS-708 rib. Finally I disassembled everything and deburred all the holes that had a drill run through them.