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Spent a whole shift chasing a phantom avionics fault on a Cessna 172

It was a simple autopilot disconnect warning light that wouldn't clear. I mean, we checked the obvious stuff for hours, but the actual issue was a tiny bit of corrosion on a single pin in a connector under the panel. Has anyone else had a gremlin like that where the fix was way smaller than the hunt?
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2 Comments
umaanderson
Oh man, that's the worst. I once spent an entire afternoon convinced we had a major electrical short, only to find a single frayed wire shielding was just tickling another ground. Felt like a real genius after that six hour treasure hunt for a problem the size of a grain of rice.
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smith.ray
smith.ray7d ago
Used to think those were just bad luck... but chasing a gremlin like that really teaches you to check the simple stuff first. Now I just assume it's something tiny hiding in plain sight. Saves a lot of headache.
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