Cleco R-904 Bottom Rib to the R-902 Spar. Enlarge the 0.125 hole in the center of the forward flange of R-904 to 3/8 using the hole in R-902 as a drill guide.
-> I reallly took my time with this as the hole to made in the R-904 bottom rid will be very close to the edge. I used a unibit and slowly to each step. It worked well.
