PPRuNe Forums - View Single Post - Left eng fail, Right eng fail. Start right engine? B777
Old 16th Oct 2018, 02:30
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Whinging Tinny
 
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Originally Posted by VinRouge
Engine TR hydraulic feed split near the jet pipe. There are things on the engine that use HYD pressure too. And you better believe skydrol, atomised as it exits a spit pipe and onto a hot section of an engine can spark.

https://www.fire.tc.faa.gov/pdf/tn90-19.pdf
There are no hydraulic components in the hot section of the engine.
Why would there be?

The t/rev components are on the forward face of the C duct and the pipelines go via the pylon.
Any pipework into the t/rev is contained in the C duct housing itself and sealed from the engine when closed.
Go and have a look at a fully opened engine and you will see.

Read my quote again about Skydrol............doesn't say it can't be ignited, but says difficult to and hard to sustain a flame.

Pleease tell me what uses hydraulics on the engine because I'm curious.

The EDP supplies aircraft hydraulics and the t/revs utilise hydraulics to work, what else?
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