Page 8-28 Match drilled #30 the 1/8 holes in each foot of the WD-808 Front seatback. it was critical to use cargo straps to pull the assembly tight together, clecos were not enough.. Matchdrilled all of the 1/8 holes in the cockpit rail that were common with the front seatback support Final drilled #19 the holes for the AN509 screws Final drilled #12 the four 3/16 holes in each foot of the WD-808 Front Seatback supportMachine countersunk for dimples the #30 holes in the F-856 Spacer (Right and Left) Machine countersunk for dimples the #19 holes in the F-856 Spacer (right and Left) Dimple countersunk the #30 and #40 holes in the cockpit rails Dimple countersunk the #19 holes in the cockpit rail for #8 screws Applied Firewall sealant along the corner of the firewall Clecoed the F-844 Aux longeron, F-802 Spacer F-802 Box Plate to the F-820 L 1 and R1 side skins and clecoed the F820-L-1 and R-1 skins in place Installed the MSP-42 blind rivets at the bottom of the wing spar opening on the left and right F-823 mid side skins Clecoed the F-848-1 upper longeron gussets in place (left and right) Clecoed the F-846-1 gussets in place (left and right) Clecoed the F-845-1 gussets in place (left and right) Clecoed the F-807 bulkhead in place and riveted the web to the F-813-L-1 and R-1 aft outboard seat ribs Clecoed and riveted the F818B-L-1 and R-1 baggage rib angles to the F-818-L-1 and R-1 baggage ribs Riveted nutplates to the baggage rib angles Riveted the F-818-L-1 and R-1baggage ribs to the web of the F-807bulkhead abd F-814B-L-1 and R-1 inboard seat rib
