Today, I began by edge finishing the flap spars as well as finishing the interior of the lightening holes. I then cleco'd the ribs to the spar and drilled the holes to size. Next, I cleco'd on the bottom wing skin and match drilled all holes. I then fabricated the spacers per the plans. I then cleco'd the top wing skin to the assembly. I inserted the spacers into the correct location, then I drilled all holes.