FlyerTalk Forums - View Single Post - Fuel leaking from wing on UA170 2017-06-14
Old Jun 14, 2017 | 5:06 pm
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LarryJ
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Originally Posted by mduell
Isn't this just a little overflow out the vent?

I'm surprised the flight cancelled.
My first thought was also that it was leaking out the fuel venting system. Could be a bad check valve that is allowing the fuel into the vent. Can also happen in warm weather as the fuel in a full tank warms and expands. It has to go somewhere so it ends up in the vents.
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