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Date:  2-27-2015
Number of Hours:  4.50
Manual Reference:  Section 7
Brief Description:  Complete Right Tank Z-brackets

Mounted each bracket to the spar with scrap nuts and bolts. Used a square to set each bracket and double checked using the centerlines that were visible through the spar holes. I made a drill block from a piece of maple left over from the flange tool handle, then used the spar as a drill guide and drilled one hole to #12 and inserted another bolt, then drilled the third hole through the spar. Repeated this process for brackets 1 - 5, then deburred all the holes. I bolted the tapped out nut plates to a tank bracket, drilled one ear and inserted a cleco, then drilled the other ear, and repeated for all brackets . I deburred all holes then set up the #40 countersink and countersunk all nutplate mounting holes, then riveted on the nutplates using the squeezer. I mounted all the brackets back on the spar with two bolts per bracket. I cleco'd the tank baffle on to the Root and #6 bracket through all the holes drilled during the previous attempt, then match drilled the 1 - 5 brackets to the baffle. Removed the baffle and checked edge distance on all holes. All mounting holes now have sufficient edge distance.
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Drill mounting holes

Drill mounting holes

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Drill nut plates

Drill nut plates

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New brackets complete

New brackets complete

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