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.) . <br /> • Page 2 of 3 <br /> 2. From a practical matter it is desirable to occasionally have an aircraft in the hangar with some minimal <br /> amount of fuel. In that way an aircraft can be taken out of the hangar, fuel added, flight tested, and then <br /> Cbrought back into the hangar for any minor adjustments needed. This amount of fuel can be kept low similar to <br /> the level of cars, trucks, and buses that would be allowed in a similar facility without the need for foam. <br /> 3. The State Fire Marshal and State Building Officials in discussion about general hangar fire codes agree that <br /> the idea of upping the sprinkler flow is a good preventative approach because it more quickly extinguishes fires <br /> that could lead to causing fire to reach an aircraft fuel tank.They searched the fire records and could find no <br /> record of an actual"pool fire"in a hangar(which in part begs the question of whether the foam is really needed <br /> in these smaller general aviation hangars). However they did find records of other fires. Better sprinklering <br /> would have helped put out all of those fires (in fact all the fires were in hangars with no fire water sprinklering <br /> at all — many of them wood hangars). <br /> 4. Foam is corrosive to aircraft and requires that the engines, avionics, etc. all be disassembled if it comes in <br /> contact with foam. NFPA says that the reason for the foam is to protect the hangar, not for protection of human <br /> life. However, the value of the aircraft are typically many times the value of the hangar, so HTS would prefer to <br /> risk losing the hangar, over the risk of the foam going off and damaging the aircraft. The only cases known in <br /> Oregon where the foam went off were by human inadvertent accident, and it caused massive damage to <br /> aircraft. <br /> Additional Information: <br /> Please let me know if I can provide additional information that helps in understanding this issue. <br /> Attachments: <br /> • State Fire Marshal John Caul data on hangar fires <br /> • Sample 33 gallon foam cart manufacturer data sheet <br /> The proposal is accepted, pending field verification of installation as compared to approved plans <br /> and authorized revisions. <br /> `r George A. Crosiar, Deputy <br /> Office of State Fire Marshal <br /> 3400 Spicer Rd. <br /> Albany OR 97322 <br /> 541.967.2043 (Office) <br /> 541.967.2164(Fax) <br /> 503.559.8550 (Cell) <br /> georee.crosiar@state.or.us <br /> ICC FPE, BPE, &Fire Inspector I/II <br /> OIC#734 <br /> DPSST/NFPA Fire Investigator <br /> >>>"Aron Faegre" <fegre@earthlink.net> Monday, November 07, 2011 1:15 PM >>> <br /> George__ <br /> Does this revision look ok to you. <br /> Aron <br /> Cell 503-880-1469 <br /> 44, <br /> Aron Faegre,AIA,PE,ASLA <br /> 4 Aron Faegre&Associates <br /> 520 SW YamhIll Street,Roof garden 1 <br /> Portland,Oregon 97204 <br /> file://C:\Documents and Settings\jtrussell\Local Settings\Temp\GW}00001.HTM 11/07/2011 <br />