Angle stiffners (F1473A) riveted to side skins. I used a MK-319-BS blind rivet on the lower aft hole. There isn't enough clearance inside to use a bucking bar nor outside to use the rivet gun. Based on other blogs about the same spot, Van's has approved the blind rivet at this location. I did final drill a #33 size hole to allow the blind rivet to fit. Also, when riveting the molded plastic rudder cable guides with the pop rivets, expect some to pull the mandrel all the way through. The plastic isn't always tight enough to snap the mandrel so there will be a hole through the rivet where the mandrel normally is. Also installed snap bushings in the required locations. Some, but not all will require a slit be made in the plastic bushing. This is so you can run the cable through the hole first then slip the bushing over the cable and snap it into place. This is so the head of the cable can fit through the hole prior to the bushing being installed.
