The inside of the Left Leading Edge Skin was roughed up and cleaned with Acetone. The 7 Ribs were cleaned in an Alumiprep bath. Skin and Ribs were primed with a self-etching primer. I assembled and riveted the Stall Warner Access Plate (Reinforcing Plate and Cover Plate). 10 Platenuts were riveted to the Reinforcing Plate. When I put in the #6 Screws, they seemed to distort the Cover Plate at each screw position. I guess it's harmless, but I may rework that Cover Plate to get a nicer looking result. The Ribs were clecoed in place in the jig... in prep for final riveting.