United 149 out of KEWR hydraulic issue
 

Not quite sure what "hydraulic issue" we are witenessing here


Also doesn't the 777 have fuel jettisoning capability ?

Article with video here: https://simpleflying.com/united-airl...sparks-debris/
I'm not too sure what part of the hydraulics is doing this, my first thought was a gear or airconditioning pack issue.

position sure doesn't look like engine related. Whatever let go had a lot of heat in it, the components that hit the ground are still glowing! don't see that from major kitchen appliances... pack ACM have a fair amount of energy, can chomp right through the fairing with ease.

Air driven hyd pumps. The 777 has two in that position. They operate 'on demand' when large demands are put on the system. EG. L/Gear and or flaps.

Hmm was unaware of those - kind of a RAT ?
Seems they failed rather spectacularly !

They’re driven by bleed air, not external airflow like a RAT.

Thanks, I considered those but didn't know where they hide within the 777 airframe.

Right hand side, just by and below the main wing trailing edge.

I'm confused..that sounds like the RAT location... I think Jhieminga was referring to the whereabouts of the ADPs

Are you sure they're not on the port side?

https://cimg4.ibsrv.net/gimg/pprune....0eebf00f9b.jpg