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We are just now getting ready to close-up our first wing. While we are installing Slats, and you are not, I believe how we run wires through the wing may still be similar.
Leaving our Slat, we ran our Landing Light wire through the wings nose skin (about where you might be placing your landing light). We then ran the wire through a lightening hole, nearby the navigation light. Using the same grommet hole in the rear channel, both the landing and navigation light wires then enter the trailing edge cavity.
As our landing lights (one for each wing) also has Wig-Wag, we needed the same 3-strand wire which came with the Navigation Lights. Unfortunately, Zenith only provided a single strand wire with the landing lights. We tie wrapped the wires to plastic mounting bases, which we attached to the rear channel about every 18 inches. Because of the size holes in the mounting bases, we used A5 rivets. While the mounting bases (PN 11-03987) came with our landing lights, we used a heavier duty mounting base on the root end of the rear channel to hold the fuel lines and wires. Also, all of the wires were placed in a 3/8" split loom. Hope this gives you some ideas.
This is very helpful. A few questions. Did you use separate + and - wires for each light? Are there two lights on each wing? Is the wig wag between the wings, or between the two lights in each pair? Thanks, Tom
I did my landing and taxi lights with a wig-wag just like Bob Knuckols shows in sheet #5 of this file from his Aeroelectric site. But any of the various schemes Bob shows will work, they just reflect different preferences. I ran one power wire and used the skin as my ground return path.