Finished riveting L upper longeron F-887 to landing gear box web and upper L engine mount. Dimpled and riveted nutplates to F-864C-1 throttle quadrant angle and F-865B-1 console angle. Back rivet F-864C-1 throttle quadrant angle and F-870B-1 outboard stiffener to F-820-L-1 forward left side skin. Back rivet F-865B-1 right console angle and F-870E-1 skin stiffener to F-820-R-1 forward right side skin. Primed front overlap edge of L & R F-823 mid side skins. Drilled aft hole of F-883-1 fuel valve bracket to 3/8". Manufactured F-883B spacers. Installed pipe plug, both AN822-6D, and AN826-6D fittings onto fuel valve. Attached fuel valve assembly to F-883-1 fuel valve bracket.