Grandaddy Document


We’re helping a neighbor friend clean out the hangar of her late husband, and running across all sorts of things that he collected as an A&P. One of them is this Grandaddy document originally published by the CAA (predecessor of the FAA) describing repair and alteration techniques acceptable to use on certified aircraft. Does that title sound a little familiar? Flipping through the pages, I can confirm that this was the parent (or by now, grandparent, considering later revisions) of AC 43.13, Parts A&B! Lots of familiar illustrations, telling me that the foundation of AC 43.13 is older than many think—and the reason I always joke that it is a great reference if you’re trying to patch the skin on a DC-3, or B-17.

And while you might think that “Civil Aeronautics manual 18” was a bargain at just 60 cents, AC 43.13 is now free as a pdf on the internet! So much for inflation.

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Paul Dye
Paul Dye, KITPLANES® Editor at Large, retired as a Lead Flight Director for NASA’s Human Space Flight program, with 40 years of aerospace experience on everything from Cubs to the Space Shuttle. An avid homebuilder, he began flying and working on airplanes as a teen and has experience with a wide range of construction techniques and materials. He flies an RV-8 and SubSonex jet that he built, an RV-3 that he built with his pilot wife, as well as a Dream Tundra and an electric Xenos motorglider they completed. Currently, they are building an F1 Rocket. A commercially licensed pilot, he has logged over 6000 hours in many different types of aircraft and is an A&P, FAA DAR, EAA Tech Counselor and Flight Advisor; he was formerly a member of the Homebuilder’s Council. He consults and collaborates in aerospace operations and flight-testing projects across the country.


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