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waltmurphy
Joined: 01 Dec 2007
Posts: 18
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 Posted: Wed Jul 22, 2009 1:40 pm Post subject: FIRE! |
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Just a heads up maybe most of you know this already but here's my story...
I fly my CJ out of Reno/Stead for Search & Rescue as a volunteer for the
Sheriff's Air Squadron.
Yesterday we were taxiing out for a flight covering parts of the Sierra
Nevada's and some of the Nevada high dessert areas.
The taxi out was fairly long since the winds favored the runway across
the field from my hangar.
Just short of the run up area the engine started running rough , I tried
to keep it running to no avail ( adjusted mixture turned on the electric
fuel pump etc) and it quit. Once it stopped , I could smell rubber
burning , we evacuated the aircraft and opened the cowl to find that 2
small rubber hoses from the oil dilution system were burning . There was
not much flame but a great deal of smoke, while my observer was getting
the fire extinguisher I reached in and grabbed the 2 small hoses and
ripped them out , there was nothing else burning ( see there is a good
reason to wear nomex gloves while you fly ). I was extremely grateful
that this event happened where it did and not 15 or 20 minutes later or
for that matter hours earlier as we had been over some ugly country the
last few days.
Needless to say the aircraft is in the hangar, I'm in the process of
totally removing the entire oil dilution system ( it had been
electrically isolated for years but still in place).
I've ordered new fuel lines from Doug and will be replacing all of these
hoses and capping off the oil dilution ports from the fuel pump and the
oil pump.
I look over the engine weekly and the hoses did not appear to be dry or
in bad shape .These lines are very thin wall and a pinhole is all it
takes to start a fire and kill the engine!
This is a good one to place in your lessons learned file .
Walt Murphy
CJ-6A
Reno,NV
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yakplt(at)yahoo.com
Guest
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| Posted: Wed Jul 22, 2009 4:15 pm Post subject: FIRE! |
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The fuel primer line is another one that does this kind of nonsense.
Good post. I removed all the fuel dilution hoses years ago, just never bothered to post it. I should have.
Thanks Walt.
Mark Bitterlich
--- On Wed, 7/22/09, Walt Murphy <waltmurphy(at)charter.net> wrote:
| Quote: |
From: Walt Murphy <waltmurphy(at)charter.net>
Subject: FIRE!
To: yak-list(at)matronics.com
Date: Wednesday, July 22, 2009, 5:38 PM
--> Yak-List message posted by: Walt Murphy <waltmurphy(at)charter.net (waltmurphy(at)charter.net)>
Just a heads up maybe most of you know this already but here's my story...
I fly my CJ out of Reno/Stead for Search & Rescue as a volunteer for the Sheriff's Air Squadron.
Yesterday we were taxiing out for a flight covering parts of the Sierra Nevada's and some of the Nevada high dessert areas.
The taxi out was fairly long since the winds favored the runway across the field from my hangar.
Just short of the run up area the engine started running rough , I tried to keep it running to no avail ( adjusted mixture turned on the electric fuel pump etc) and it quit. Once it stopped , I could smell rubber burning , we evacuated the aircraft and opened the cowl to find that 2 small rubber hoses from the oil dilution system were burning . There was not much flame but a great deal of smoke, while my observer was getting the fire extinguisher I reached in and grabbed the 2 small hoses and ripped them out , there was nothing else burning ( see there is a good reason to wear nomex gloves while you fly ). I was extremely grateful that this event happened where it did and not 15 or 20 minutes later or for that matter hours earlier as we had been over some ugly country the last few days.
Needless to say the aircraft is in the hangar, I'm in the process of totally removing the entire oil dilution system ( it had been electrically isolated for years but still in place).
I've ordered new fuel lines from Doug and will be replacing all of these hoses and capping off the oil dilution ports from the fuel pump and the oil pump.
I look over the engine weekly and the hoses did not appear to be dry or in bad shape .These lines are very thin wall and a pinhole is all it takes to start a fire and kill the engine!
This is a good one to place in your lessons learned file .
Walt Murphy
CJ-6A
Reno,N= --> http://www.matronics.com/Navigator?Yak-Listhttp://forums.matronbsp; - List Contribution Web Site -http://www=======================
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[quote][b]
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cjpilot710(at)aol.com
Guest
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| Posted: Wed Jul 22, 2009 5:18 pm Post subject: FIRE! |
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In a message dated 7/22/2009 8:16:41 P.M. Eastern Daylight Time, yakplt(at)yahoo.com writes:
Check that primer. I too had one of those start to leak. At an airshow in MIA, Sam Sax notice fuel vapor and spray coming from my cowling as I was preparing to leave, and was priming my engine, prior to start. He flagged me to stop and shut down. I would have never notice it.
I have since put fire proof sleeves on my fuel and oil hoses, like we have on the B-24. Not all of us do it but lines should be changed every 5 years, as a matter of course.
I too removed the fuel dilution hose but use the valve as part of my smoke system.
Jim "Pappy" Goolsby
| Quote: | The fuel primer line is another one that does this kind of nonsense.
Good post. I removed all the fuel dilution hoses years ago, just never bothered to post it. I should have.
Thanks Walt.
Mark Bitterlich
--- On Wed, 7/22/09, Walt Murphy <waltmurphy(at)charter.net> wrote:
| Quote: |
From: Walt Murphy <waltmurphy(at)charter.net>
Subject: Yak-List: FIRE!
To: yak-list(at)matronics.com
Date: Wednesday, July 22, 2009, 5:38 PM
--> Yak-List message posted by: Walt Murphy <waltmurphy(at)charter.net (waltmurphy(at)charter.net)>
Just a heads up maybe most of you know this already but here's my story...
I fly my CJ out of Reno/Stead for Search & Rescue as a volunteer for the Sheriff's Air Squadron.
Yesterday we were taxiing out for a flight covering parts of the Sierra Nevada's and some of the Nevada high dessert areas.
The taxi out was fairly long since the winds favored the runway across the field from my hangar.
Just short of the run up area the engine started running rough , I tried to keep it running to no avail ( adjusted mixture turned on the electric fuel pump etc) and it quit. Once it stopped , I could smell rubber burning , we evacuated the aircraft and opened the cowl to find that 2 small rubber hoses from the oil dilution system were burning . There was not much flame but a great deal of smoke, while my observer was getting the fire extinguisher I reached in and grabbed the 2 small hoses and ripped them out , there was nothing else burning ( see there is a good reason to wear nomex gloves while you fly ). I was extremely grateful that this event happened where it did and not 15 or 20 minutes later or for that matter hours earlier as we had been over some ugly country the last few days.
Needless to say the aircraft is in the hangar, I'm in the process of totally removing the entire oil dilution system ( it had been electrically isolated for years but still in place).
I've ordered new fuel lines from Doug and will be replacing all of these hoses and capping off the oil dilution ports from the fuel pump and the oil pump.
I look over the engine weekly and the hoses did not appear to be dry or in bad shape .These lines are very thin wall and a pinhole is all it takes to start a fire and kill the engine!
This is a good one to place in your lessons learned file .
Walt Murphy
CJ-6A
Reno,N= --> http://www.matronics.com/Navigator?Yak-Listhttp://forums.matronbsp; - List Contribution Web Site -http://www=======================
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