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Task: Drilled left bottom wing skins and
leading edge nose rib.
the day off by match drilling the bottom inboard and outboard
left wing skins (W-704/705).
W-408-1 leading edge nose rib was put into place after fluting.
I aligned the flange with the edge of the skin, clamped in
place, and then drilled the main rib/spar holes.
joint plate was then inserted into place. It has a centerline
marked 1/2" from the outboard edge to be drilled with
the skin/rib. After checking alignment several times I drilled
all the holes.