The day begins quite bad as I notice that despite my efforts to set the Z-brackets properly, I managed to mix-up my left and my right. So they are oriented correctly, but they are in the wrong order. First idea is to disassemble all the brackets and assemble again everything correctly.
I decide to drill out first the outermost bracket and to rivet them at the correct place. I now have three brackets correctly set : the two outermosts and the middle one which has not to move. I then decide to install the tank on the spar and have the good surprise to see that I can insert all the bolts. That's quite a happy end.



I then close the tanks, first the inspection hole cover.



Then the fuel gauge, and to finish all the rivets get prosealed.