This flap brace job is one where I wish I had a 2nd pair of hands. Although, I did manage to get my arms into the wing plus hold the 3x rivet gun underneath. My arms were full of the RV lightening hole scratches when done. There were two rivets that were at the limit of my reach and I just could not satisfactorily set them so I drilled them out and put in the authorized MSP-42 pull rivets. At the root end, it took AN470AD4-9 length to reach through the spar doubler and all the rest of the metal to set those last three inboard rivets. I really liked the mass of the titanium bucking bar, so I duct taped it onto a longer steel bucking bar to give me a longer reach. When I rested it on top of a rivet, the mass was sufficient to properly set the shop head with very little pressure from my already stretched to the limit arm/hand inside the wing. Had to drill out two other poorly set shop heads. The 2nd effort came out real nice.
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