Setting location of W20-02 Root Rib Attach Angle, drill #40 and cleco to W08-01R Right Main Spar. Drill #40 and cleco W17-01R Aft Root Rib to W20-02 Root Rib Attach Angle @ W08-01R Right Main Spar and W13-02R Root Rib Attach Angle @ W12-01R Rear Main Spar. Drill #40 and cleco Forward Root Rib to W20-03 Forward Root Rib Attach Angle. Fit W19-01 Aft Upper Wing Skin, clamp trailing edge to W12-01R Right Rear Spar.
