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Date: Sat, 12 May 2007 15:30:03 -0400
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From: Alain NOIREAUX <alainoireaux@club-internet.fr>
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Subject: Re: [LML] Re: Mountain Air Oxygen
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I can tell you that , when I was a jet fighter pilot ,I have seen a fire 
starting in a cockpit where a friend of mine was waiting to start up . 
An oxygen leak on a patch of grease on the canopy locking system and the 
fire started . My comrade bailed out and ramp technicians used 
extinguishers to stop the fire quickly. It is serious,not "old wives 
tales" nor hangar jokes .
Keep that in mind when using oxygen and have nice flights .

Alain NOIREAUX

Chuck Jensen a écrit :
> Rick wrote...
>
> Oil, grease, etc can spontaneously combust in an oxygen rich
> environment. 
>
> Want to try an experiment - Shoot pure O2 from an oxy/acetylene torch at
> an oily/greasy shop rag.  Be prepared for fire.  Thus, caution when
> using a torch with dirty (greasy) jeans and don't introduce ANY oil into
> your o2 system.
>
> Seems there was once even a warning about not using lipstick and oxygen
> together as the lipstick had a somewhat greasy base and could ignite
> when bathed in O2.  (Myth???)
> ------
> I understand that oils will oxidize (light, more volatile petroleum
> products do so faster than more viscous products, such as grease) and in
> a pile of rags, the slow oxidation can eventually generate enough heat
> to cause spontaneous combustion, but I'm not sure how that phenomena, or
> the torch analogy, apply to our aircraft and cockpit.  Nonetheless, your
> points are well taken and in the interest of safety and on the side of
> caution, I'm not going to wear lipstick when I use oxygen.  :-)
>
> Chuck
>
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