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Dave's RV-7A Builder's Log
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Date: 12-27-2016
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Number of Hours: 5.00
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Manual Reference:
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Brief Description: GDL 39 power & wire bundle organization
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With a week off of work for the holidays, my goal is to get out to the hangar for a little while each day this week and try to knock as much electrical stuff out as I can. The first order of business for today was to splice the GDL 39 wire and move it from the battery bus to the aux bus. The original bundle from Steinair was very well designed, but for some reason the GDL 39 lead was orphaned from the rest of the avionics power wires and was far too short to reach the aux bus where I had intended to put it. During the process of wiring everything, I somehow forgot to move it and simply attached it to the hot battery bus since the lead was the perfect length for that location. The more I thought about it, the more I realized that having a component like that “always on” was not a good idea, so I spliced the wire and moved it to the aux bus where it will be controlled with the master switch like all of the other avionics.
The second thing on the agenda was to find the wire known as L1, since that was the shrink wrap marker that was on it when it came from Van’s way back when I ordered a wire harness. I had used L1 to run a lead from the standby battery that indicates battery power (where it terminates I still don’t know, but somewhere on the GEA 24 connector I’m sure), but in the process of wire termination I feared that I might have run it to ground. With plenty of padding in place, the multimeter in hand, I climbed under the panel and started testing. I had to drop the standby battery connector to be sure, but in the end I found the lead on the ground bus...that makes two I’ve incorrectly terminated to ground. Once I found it, I disconnected it and put some heat shrink on it to protect it from contacting anything, and then set about reorganizing the ground bus and a bunch of other bundles. I think I’m close to having everything at least terminated and organized behind the firewall.
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GDL 39 wire terminated at hot battery bus
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And moved to its permanent home on the aux bus
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