Clecoed and match drilled the nose ribs to the spar Insured alignment of the ribs and clecoed and match drilled them to the 705 main spars. Clecoed the leading edge and the trailing edge to the spar with the counterbalance pipe in place. Opened counterbalnce pipe attach holes to #30. Once everything was aligned I removed the trailing edge and gained access to the counterbalance attach hole with the long bit per plans. Disassembled and deburred, dimpled and machine countersunk per plans the counterbalance pipe, and primed parts.