Clecoed the HS-903 rear spars together with the HS-906 doubler plate and match drilled the holes to #30. Clecoed the HS-912 outboard hinge brackets to the rear spar and match drilled the #30 holes. Drilled the #30 holes in the HS-908 attachment brackets and clecoed them to the front spar using the predrilled alignment holes. Match drilled the HS-908 brackets to #30. Assembled the ribs to the front and rear spars and and started match drilling the 1/8 inch alignment holes to #30.
