Anthony came over and gave me a hand to install the correct AN3 bolts into the lower right and left longetons/engine mounts. The AN4 rivets wre drilled out of the left side (right side done with longeron replacement) after the outer skin was deriveted to allow access. AN3 bolts were fitted to the correct locations. Also, Anthony helped me finish off the rivetting for the lower longeron replacement. A great job to have done!