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Spent two whole days chasing a phantom hydraulic leak on a King Air, turned out to be a $3 O-ring on the reservoir cap vent
I mean, I had the whole belly panel off, fluid everywhere, checking every line and fitting. Pressure tests kept showing a slow drop. My lead was getting on my case about the hangar time. Finally, just on a hunch, I looked at the stupid filler cap assembly. The vent path goes through this little O-ring that was totally flattened and cracked. Swapped it in five minutes. Has anyone else had a simple part like that waste a huge chunk of your week? I feel like the manuals never point you to check the obvious cheap stuff first.
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burns.brooke5mo ago
Right? It's like life in general always gets you with the tiny, cheap stuff while you're off chasing the big complicated problem. A loose battery cable in my car did the same thing once, had me ready to swap alternators.
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tyler8224mo ago
Honestly, do we really think O-rings are the cause that often? I've seen plenty of leaks that ended up being a bad seal or a crack somewhere else, not a little rubber ring. Feels like that stat might be a bit of a stretch, at least in my experience.
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