Started to assemble the flaps starting with both skeletons. All the nose and trailing edge ribs, doublers and brackets were subassembled and attached to the flap spar. Once they were attached and match drilled, I added the lower and upper skin. After clecoing, I installed and trimmed the aft trailing edge to fit. All skin holes need to be match drilled and then the process needs to be repeated for the right flap.