Cleaned and primed the Right Inboard Top Skin and the Wing Walk Doubler. I decided to use self-etching primer for the inside of all skins. There are three Flap Hinge Brackets for each wing. Fabricated all W925B and W925C Angles and drilled them to the W925A Flap Hinge Brackets. All six assemblies were match-drilled to the Wing Ribs and Rear Spar (3 on each wing). There are 4 or 5 holes on each assembly that I can't drill squarely at this time. I expect an angle drill attachment in the mail tomorrow which should do the job.