Back riveted K1100-6 nutplates onto reinforcement plant. Dimpled E-1001B Skin. Dimpled right elevator main spar and E-905 End rib. Dimpled tip ribs E-903 and E-904. Riveted E-903 and E-904 together. Clecoed on Counterbalance skin. Riveted tip rib extension plate and MK2000-3 nutplates onto left elevator for outboard static wick.