United Airlines flight suffered fuel leak

[avi-addict]

https://www.google.co.za/url?sa=t&sourc ... _AP9Dq8nEQ

[Propnut]

When fuel is dumped is it not pumped out through the wing tip?

[Bell 407]

When fuel is dumped is it not pumped out through the wing tip?

Proppies, I was going to ask the same thing. That discharge looks like the point where fuel would be dumped from? So maybe a problem with a switch on the ground perhaps.

[Raffles]

Possibly a fuel dump valve opened inadvertently or by some technical problem. Another stronger possibility is the "overflow", actually a surge tank at the wingtip to capture excess fuel, may have had fuel in it.