The distinctively more robust extruded hinge on the fuselage required removal and replacement of the rolled knuckle hinge on the rudder. The rivets were first prepared for drilling the heads by using a spring-loaded center punch to drive the rivet mandrel back. Driving the mandrel exposes the rivet to effect head removal with a 1/8in drill. A first replacement hinge part was discarded after trying to align the rivet holes with the old workpiece. The drilled aluminum ruler was used on a second attempt. Several holes on the rudder skin needed to be opened to accept a rivet. The tang for securing the hinge pin with safety wire was too long, contacting a bolt head. The tang was cut back and the safety wire hole relocated. Reassembling the rudder halves is a much tighter fit. A previously used piece of rudder hinge was tapped up from the bottom. A battery powered drill will be used to pull the slightly flattened end of the hinge pin through both hinge halves to open the holes.