Triple 7 Suspected Hydraulic System Problem

[MolaKule]

Speaking of Newark:

https://www.fox5ny.com/news/united-airlines-newark-technical-issue

I will be keenly interested in the NTSB report.

 

[E365]

ATC audio tapes



Some speculation it could have been a failing hydraulic ADP “air driven pump”. Powered by bleed air. The exhausts for them are apparently near where the sparks were coming from.

 

[Astro14]

Airplane landed safely.

That should be the headline.

 

[MolaKule]

ATC audio tapes

Some speculation it could have been a failing hydraulic ADP “air driven pump”. Powered by bleed air. The exhausts for them are apparently near where the sparks were coming from.

Thanks, that is similar to what I had heard. I'm interested because I did a lot of work on the 777 propulsion systems.

My theory is we had a failing bearing on that pump that caused a seal leak and subsequently, a hydraulic fluid leak.

The downloaded telemetry to the maintenance dept. apparently showed a problem resulting in the fuel dump and return to ground.

And yes the good news is, the pilots returned it safely.

 

[The_Eric]

Airplane landed safely.

That should be the headline.

But that doesn't grab attention and generate clicks and revenue now does it?