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Johns Web Site
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Date: 7-1-2015
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Number of Hours: 2.50
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Manual Reference:
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Brief Description: Rebuilding Wing Access Panel Doublers
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I originally drilled, dimpled, and mounted the nutplates to the access panel doublers last April. However, in the process I took a shortcut by not securing the nutplate through the first rivet hole while drilling the second hole. I thought that I had secured the nutplate enough with a screw through the center, but the nutplates on several of the holes moved enough that the #6 screws would not enter. Fortunately, I discovered this before mounting the doublers to the wing.
So, I ordered replacement doublers from SPA and started over. The nutplates were salvaged without difficulty from the earlier attempt. This time, with a shortened screw in the nutplate, and after drilling the first rivet hole, a cleco was inserted through the first rivet hole while the second hole was drilled. Because I had them on hand from a previous project, I used solid 3/32 rivets processed with a “back riveting” technique. Everything is correctly aligned and looks good this time.
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Dimpled, Ready for the Nutplates
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Back Riveting with Solid Rivets
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Ready to Mount in the Wings
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