Completed step 1 page 21-20 - As shown in Figure 1, install the six systems block studs in the holes of the F-1276 Bottom Skin between the two inboard F-1215 Seat Ribs. Tightened the MS-21042-08 nuts onto the MS35206-248 screws. My brother was in town and helped me do this step holding the nut while I tightened the screws
