Brief Description: Right Wing Lower Aft Skin Fitting
Drilled and cleco'd the aft spar edge of the lower aft skin to ensure straightness, then proceeded to drill and cleco the ribs, starting from the aft center of the wing, and working forward and out to each end of the wing.
Once completed, up-drilled all of the rib cleco's to #30 to free up the #40's. Even with 300 of each, it's getting tight.
Spent considerable time drilling all 104 holes that hold the forward edge of the aft skin (got it?) to the main spar cap extrusion. Since this is 1/4" stuff, it was slow going.