Dimpled and countersunk all holes in F-820-L-1 forward side skin. Removed, edge finished and deburred L & R F802S-1 spacers. Countersunk #30 holes in L & R F-843 lower longerons common to F-820 forward side skins. Countersunk the five #30 holes in bottom web of L & R F-843 lower longerons.
