Removed upper skin and primer, after sanding and deburring. Mounted aileron cables, and locked with safety pins.Spent some time to figure out where to connect fuel return line into tank. I need to install a fuel drain valve in each tank, but space is limited. It is Easter saturday and I have to wait until tuesday to order parts. Yesterday I recive an answer from ICP about angles Y6-W-11-52, they should be attached to front rib no 3 and 4 as I thought.