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I used to hate working on the old Collins Pro Line 21 systems, but a job in Boise made me see them differently.
I mean, for years I saw those units as these clunky, slow boxes that just took up rack space. I was on a contract in Boise about six months ago, and this King Air came in with a full suite of them acting up. The pilot said the whole nav system would just drop out for a few seconds every flight. We spent a day checking everything, wiring, LRUs, the usual. Then I actually sat down with the old paper manual, not the digital one, and found this one note about a specific ground point behind the co-pilot's panel. It was corroded, just a tiny bit. Cleaning that one spot fixed it all. It made me realize those old systems are built like tanks, and the answers are usually in the books if you look. Has anyone else had a simple fix on an old platform that totally changed how you feel about it?
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casey34219d ago
Ever get that feeling where the fix is so simple you almost feel dumb for not seeing it first? Those old manuals really do hide the answers in plain sight sometimes. It's like the system was just waiting for someone to actually read the book.
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the_jessica19d ago
Oh man, that's the best kind of fix! You spend all this time thinking it's some deep, scary system fault, and it turns out the plane just needed a tiny bit of cleaning, like getting a crumb out of a keyboard. It's almost funny how we'll tear apart everything except the one simple thing the manual actually says to check first. Those old boxes really do humble you in the best way.
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rosecarr19d ago
Totally get what you mean about those old systems. I used to groan whenever I saw one come into the shop. Had a similar thing with an old GNS 430 where the screen would flicker. Everyone was ready to swap the whole unit. Turns out it was just a loose connector on the back that wasn't seated all the way from the last install. Pushing it in fixed it in two seconds. Makes you appreciate how straightforward the older gear can be sometimes, right?
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