ScarletHarlot
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Hydraulic Line Breaks - Kids On Plane Meet Skydrol

Sat Jul 02, 2005 8:46 am

Hey guys, there was a thread some time ago about your least favourite aviation-related fluid, if I remember correctly, and many of you stated it was Skydrol. I was perusing the NTSB database (slow Friday afternoon) and found the following report:

http://www.ntsb.gov/ntsb/brief.asp?ev_id=20050616X00793&key=1

According to the second flight attendant, she said that when the airplane was turning onto the taxiway she heard a loud "pop noise" followed by a "hiss and a lot of fluid." The cabin looked "smoky" and the fumes were "strong." The three children seated in row 3 were "soaked", and were crying and rubbing their eyes. The passengers in rows 3, 4, and 5 also had fluid on them.

From what you guys said, those passengers must have been absolutely miserable!
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dl757md
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RE: Hydraulic Line Breaks - Kids On Plane Meet Skydrol

Sat Jul 02, 2005 10:34 am

When a high pressure hydraulic line breaks the fluid escapes in a mist form that resembles a fog or smoke. It is very difficult to keep it out of your mouth, nose, and eyes when it is in this form. The effects of the mist are not unlike those of pepper spray. The effects last longer though as Skydrol is not at all water soluble and therefore bodily fluids don't wash it away very readily. Unless there is some mineral oil around it doesn't go away very quickly. I've heard milk works (I've never tried it) so the cabin crew could have administered milk to ease the burning. But yes, those passengers would have been quite miserable.

Dl757Md
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Goldenshield
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RE: Hydraulic Line Breaks - Kids On Plane Meet Skydrol

Sat Jul 02, 2005 10:53 am

Those poor kids. I feel a lawsuit coming on.
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HAWK21M
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RE: Hydraulic Line Breaks - Kids On Plane Meet Skydrol

Sat Jul 02, 2005 2:52 pm

Skydrol.....One can never forget the Experiences with it ever.
Poor kids,they may have had a very tough time.
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
FDXmech
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RE: Hydraulic Line Breaks - Kids On Plane Meet Skydrol

Sun Jul 03, 2005 9:39 am

I feel very bad for those children. That's absolutedy terrible. If you get a tiny bit of residue on your finger and it comes in contact with your lips or worse, your eyes, it's either very painful (eyes) or a very horrible taste that lingers a while. Awful enough if your a mechanic and are familiar but for a child or even an adult, I can't even comprehend.

I'm thinking on a commercial jet if the lines are even routed through the pax compartment.
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dl757md
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RE: Hydraulic Line Breaks - Kids On Plane Meet Skydrol

Sun Jul 03, 2005 4:35 pm

Quoting FDXMECH (Reply 4):
I'm thinking on a commercial jet if the lines are even routed through the pax compartment.

They are below the cabin floor. The problem is that if a line fails the high pressure stream of fluid coming from it can act like a saw and easily cut through cabin floor panels.
757 Most beautiful airliner in the sky!
 
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HAWK21M
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RE: Hydraulic Line Breaks - Kids On Plane Meet Skydrol

Sun Jul 03, 2005 4:47 pm

Quoting Dl757md (Reply 5):
The problem is that if a line fails the high pressure stream of fluid coming from it can act like a saw and easily cut through cabin floor panels

I think the Fluid spray would be worse off thru the Pressurized cabin if the lines are routed thru the section.
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
DC8FriendShip
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RE: Hydraulic Line Breaks - Kids On Plane Meet Skydrol

Sun Jul 03, 2005 7:31 pm

Quoting Dl757md (Reply 5):
They are below the cabin floor.

On the 146 they come in above the storage bins, then turn down. this is where the leak occurred.
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MD11Engineer
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RE: Hydraulic Line Breaks - Kids On Plane Meet Skydrol

Sun Jul 03, 2005 9:33 pm

Since the BAE 146 is a high wing aircraft, the lines will have to be routed trough the cabin to e.g. the landing gear and the auxillary pumps in the lower area of the fuselage.

Jan
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LMP737
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RE: Hydraulic Line Breaks - Kids On Plane Meet Skydrol

Sun Jul 03, 2005 10:58 pm

Another nice design feature on the BAE-146. Some of my co-workers are former Air Cal AMT's and they don't have very many nice things to say about it. Anyway by the sounds of it a good portion of that cabin interior is going to have to be disposed of.

Dl757md:

I've heard the milk thing before and I myself would be hesitant to use it. If that milk has any bacteria in it by putting it in your eye you might have some trouble latter on.
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Starlionblue
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RE: Hydraulic Line Breaks - Kids On Plane Meet Skydrol

Sun Jul 03, 2005 11:08 pm

Quoting LMP737 (Reply 9):
If that milk has any bacteria in it by putting it in your eye you might have some trouble latter on.

Milk tends to be pasteurized so it should be bacteriologically inert if you get it direct from the packaging.
"There are no stupid questions, but there are a lot of inquisitive idiots." - John Ringo
 
air2gxs
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RE: Hydraulic Line Breaks - Kids On Plane Meet Skydrol

Sun Jul 03, 2005 11:34 pm

Milk works fine, just follow it with large amounts of water.
 
Venus6971
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RE: Hydraulic Line Breaks - Kids On Plane Meet Skydrol

Mon Jul 04, 2005 3:16 am

Goes the old saying that a leak never gets better, sounds like this will keep some lawyers gainfully employed.
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avt007
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RE: Hydraulic Line Breaks - Kids On Plane Meet Skydrol

Tue Jul 05, 2005 12:20 am

Since the Dash8 is also high wing, it has the line coming down behind the bins and heading forward for the nose gear. Also the F28 has the main hydraulic pressure manifolds inside the fuselage- one in the lav behind the wall, and one on the opposite side in the galley area. I've seen leaks in both aircraft causing problems for the pax.
 
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HAWK21M
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RE: Hydraulic Line Breaks - Kids On Plane Meet Skydrol

Tue Jul 05, 2005 1:02 am

I wonder how the Kids would have reacted.It would have been very tough since they would not have heard of Skydrol.
They certainly wont forget this Experience.
Sad case.
regds
MEL
I may not win often, but I damn well never lose!!! ;)
 
MD11Engineer
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RE: Hydraulic Line Breaks - Kids On Plane Meet Skydrol

Tue Jul 05, 2005 2:48 am

Quick change and combi planes with hydraulic cargo doors also have hydraulic lines running through the cabin.

Jan
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HAWK21M
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RE: Hydraulic Line Breaks - Kids On Plane Meet Skydrol

Tue Jul 05, 2005 4:19 pm

Quoting MD11Engineer (Reply 15):
Quick change and combi planes with hydraulic cargo doors also have hydraulic lines running through the cabin

The Ones on BDA/DHL B732SFs use Mineral based Fluid MIL5606 in a seperate Standalone system.

regds
MEL
I may not win often, but I damn well never lose!!! ;)

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