(1) Completed riveting nutplates to the Cover Support Ribs. (2) Enlarged the snap bushing holes for the Cover Support Ribs. (3) Fabricated the F-904J Center Section Spacers (4) Primed the F-904J, F-704M Web Stiffeners and F-633 Control Column Mounts using SEM self-etch. (5) Riveted the F-704C-L/R and F-704D-L/R Center Sections to the forward and aft bulkheads, respectively. Used the C-frame and the back-riveting extensions. Worked great! (6) Riveted the F-704G Shear Bars to the aft bulkhead. (7) Began installing snap bushings into the aft bulkhead.
