Today Dad and I picked up where we left off on the T-712 Z Brackets that attach the fuel tank baffle to the main spar. Since we finished priming and countersinking them, the next step was to rivet the K1000-3 platenuts to them in order for them to be bolted to the spar. We set all of the rivets and they turned out beautiful! 12 of the 14 had already been drilled to the spar and the remaining two were the inboard brackets, I'm not too sure why they have you hold out on these, but you're supposed to match drill these to the spar once the baffle is clecoed to the other brackets. After the spar was off of the wing jig and back on our work bench we clecoed the bracket to the baffle and got to drilling.
Well the first one didn't turn out too great, in fact it's unusable! A simple mistake led to a $2.50 replacement part. Our mistake? We held the bracket agains the spar too firmly which caused the baffle to flex, with it drilled in this position the hole is in the wrong location when the pressure is taken away. Oh well, our part should be here Thursday and we'll be back in business!
We also went over the wing ribs one last time and made some fine adjustments. After handling them so much getting the scratches out of them we realized they got a bit out of alignment, therefore we had to re-flute them. They're all straight once again though and hopefully we'll be able to prime them this week!
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