W07 Wing Box - Left Hand Wing - I turned the wing over so that the upper side is now up. I added the aileron hinge by drilling #40 pilot holes up drilling to # 30 holes and clecoing it into place. I also added the wing walk / root doubler by drilling #40 pilot holes up drilling to #30 holes and cleoing it in place. I up drilled all the holes at the main spar to the #30 size. I up drilled the holes on the leading edge skin that will be dimpled to the #32 size. All holes are now up drilled to their final size.


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