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Finally got that intermittent VHF comms fault on a Cessna 172 pinned down

It was a ghost for three days, dropping out randomly on the ground in Denver. Traced it to a corroded BNC connector at the antenna coupler, resistance was all over the place. Anyone have a go-to method for cleaning those up besides just a straight swap?
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2 Comments
the_anthony
Try a fiberglass pen, works wonders on that corrosion.
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ross.kevin
Ever try white vinegar on it first?
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