Brief Description: Dimpled L & R Rear Spar Upper Flange
15-4; Step 3: Final drilled #40 and dimpled the 26 inboard most holes on the upper flange of the W-1007A-L and R Rear Spars. Used the pneumatic squeezer. Used the Tatco hand squeezer to dimple the holese in the ribs lower aft tab ond the corresponding holes in the W-1007A-L and R spars. Both seem to work ok. The hand squeezer fit the spar flange easier but either seem acceptable.
