I updrilled all the holes in the left main spar assembly today. Well, all, not quite, there are holes that have to be dinmpled in the main spar aft web W10-02 and countersunk in the center web and spar caps, therefore I only updrilled those one size below the final size, then removed the aft web and then updrilled the center web and spar caps to their final size, I will dimple the holes that require dimpling on the aft web first before drilling those to their final size
