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Found out a shocking stat about wiring harness failures yesterday
I came across a report saying 80% of avionics failures are actually from bad connections, not bad units. That was at a training seminar last week. Has anyone else seen numbers like that in their own work?
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elliot_johnson313mo ago
Wait, are you saying that many bad connections don't count as wiring harness failures... seems like that's exactly what a harness failure is if the wire or pin is the problem.
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alice2693mo ago
80% seems like one of those numbers that sounds right until you actually look at the data. I've been around long enough to know that a lot of those stats get pulled from specific cases that don't match real world conditions. Most techs I've worked with would tell you half the time it's just a loose pin or corrosion, but labeling that as a "wiring harness failure" feels like a stretch. Plus, that 80% figure probably comes from one manufacturer's internal study on their own stuff, not a general rule. I'd want to see the actual repair logs broken down by root cause before buying into it that heavily.
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