Started installation of the fuselage floor details. Started with the large cross beam at the bottom aft corner of the seat. Drilled through the floor skin into this beam. Figured out that the 3 end holes on the 1x1x.125 angle that supports the seat attach hinge should not have been drilled. They will end up too close to the edge of the side angles that attach the seat brace to the fuselage sides. I'll respace 2 AN3 bolts between the 3 holes.