Today I went a little in reverse. I determined I would like to prime the attach angles, so I removed the angles I had clecoed to the left spar. I used a scotch brite pad to prep all of the attach angles for primer. I pushed the priming station outside and applied a coat of primer toto all of the attach angles.
While the primer was drying I drilled and tapped the AEX aluminum block on the right spar. I then clecoed the attach angles to the left and right spar. I am now ready to begin installing the required rivets.
I pulled the rivets in the left spar as called out on the drawings.