Straightened flanges of 605 root rib to be perpendicular to web. Drilled #41 holes in spar web to attach 605 root rib. Measured and drilled #30 holes in control horn. Lined them up 1/4" from edge and 1/4" from tip, then 1 1/2", and then 1".
Straightened flanges of spar to be perpendicular to web.
