Deburred, fluted, Fit-up and drilled replacement LH LE IB rib. Match drilled holes through spare and spar flanges. Match drileed LH LE skin an ribs. Dissassembled LH skins and ribs. Deburred holes in ribs.Deburred splice plate and stall warning switch access plate doubler. Scuffed and cleaned ribs, splice plate and doubler.
