Clamped the F-83-1 fuel valve bracket in position and drilled #19 the holes marked in the aux longeron Unbolted and removed all parts not yet riveted from the fwd fuselage
Page 8-30 Machine Countersunk the #30 holes in the F-843-L1 and R-1 lower longeron side webs that are common with the bottom edge of the F-820-L-1 and R-1 fwd side skins
