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Engine Nacelle Halon Replacement, FAA, WJ Hughes Technical Center Point of Contact :Doug Ingerson Department of Transportation Federal Aviation Administration.

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Presentation on theme: "Engine Nacelle Halon Replacement, FAA, WJ Hughes Technical Center Point of Contact :Doug Ingerson Department of Transportation Federal Aviation Administration."— Presentation transcript:

1 Engine Nacelle Halon Replacement, FAA, WJ Hughes Technical Center Point of Contact :Doug Ingerson Department of Transportation Federal Aviation Administration WJ Hughes Technical Center Fire Safety Section, AAR-422 Bldg 205 Atlantic City Int'l Airport, NJ USA tel: fax: web page:http://www.fire.tc.faa.gov/ International Aircraft Systems Fire Protection Working Group Wilson, NC 17-18July2001 Federal Aviation Administration WJ Hughes Technical Center, Fire Safety Section, AAR-422 Atlantic City Int'l Airport, NJ USA

2 PROGRESS/CURRENT STATUS Three Major Topics for Review : Fire Extinguisher Test Section Gas Analyzer International Aircraft Systems Fire Protection Working Group Wilson, NC 17-18July2001 Federal Aviation Administration WJ Hughes Technical Center, Fire Safety Section, AAR-422 Atlantic City Int'l Airport, NJ USA

3 PROGRESS/CURRENT STATUS >Fire Extinguisher #Equilibrium subsystem being added iN2/agent mixture will be stabilized in this subsystem and then moved into the firex for pretest conditioning ithe N 2 /agent solubility interaction will attain completion in a more controlled manner iremoves the interaction from the detrimental exposure of the temperature extremes found in the firex iwill minimize a circumstance potentially capable of producing inconsistent test results #Firex leak identified ibad seals found in the 1-1/4” releasing valve (pneumatically operated ball valve) irepair kit ordered; due on-site by Aug ‘01 irepair will be performed immediately upon receipt of parts International Aircraft Systems Fire Protection Working Group Wilson, NC 17-18July2001 Federal Aviation Administration WJ Hughes Technical Center, Fire Safety Section, AAR-422 Atlantic City Int'l Airport, NJ USA

4 PROGRESS/CURRENT STATUS Fabricating the equilibrium subsystem International Aircraft Systems Fire Protection Working Group Wilson, NC 17-18July2001 Federal Aviation Administration WJ Hughes Technical Center, Fire Safety Section, AAR-422 Atlantic City Int'l Airport, NJ USA

5 PROGRESS/CURRENT STATUS >Test Section #Spray hot plate failed 8May01 during warm-up for fire sensitivity evaluations iproblem found and corrected ipool hot plate corrected also ioperational once again 20June01 #Fuel flow characterization for the spray and pool fire scenarios underway International Aircraft Systems Fire Protection Working Group Wilson, NC 17-18July2001 Federal Aviation Administration WJ Hughes Technical Center, Fire Safety Section, AAR-422 Atlantic City Int'l Airport, NJ USA

6 PROGRESS/CURRENT STATUS >Test Section (continued) #Fire sensitivity evaluations to occur for both fire scenarios between now and 10October01 ipurpose ]rank combustion intensity dependent upon varying configurations for each fire scenario ]provide experience with the fire scenarios ]potentially ease the search for a “robust fire” ithe evaluation of the residual scenario will include considerations for : ]freeboard (lip) height above the fuel ]pool surface area ]the orientation of the pool surface area ithe evaluation of the spray scenario will focus on the combustion intensity as a function of the spatial relationship between the fuel nozzles and the associated engine core rib located downstream International Aircraft Systems Fire Protection Working Group Wilson, NC 17-18July2001 Federal Aviation Administration WJ Hughes Technical Center, Fire Safety Section, AAR-422 Atlantic City Int'l Airport, NJ USA

7 PROGRESS/CURRENT STATUS >Halonyzer II Modification #Currently on-going iproblem solved icurrent device acceptably behaved during recent bench-top evaluation ithe final configuration of the device is in fabrication iexpect operational device in 4-6 weeks #Calibration to be accomplished after device is completely assembled #Device maintains original design concept ino excessive proof-of-concept required ino difficulty expected in acquiring test data International Aircraft Systems Fire Protection Working Group Wilson, NC 17-18July2001 Federal Aviation Administration WJ Hughes Technical Center, Fire Safety Section, AAR-422 Atlantic City Int'l Airport, NJ USA

8 PROGRESS/CURRENT STATUS Bench-top configuration of the “new” analyzer International Aircraft Systems Fire Protection Working Group Wilson, NC 17-18July2001 Federal Aviation Administration WJ Hughes Technical Center, Fire Safety Section, AAR-422 Atlantic City Int'l Airport, NJ USA

9 PROGRESS/CURRENT STATUS Perspective View, New Connectivity Box for the Halonyzer II International Aircraft Systems Fire Protection Working Group Wilson, NC 17-18July2001 Federal Aviation Administration WJ Hughes Technical Center, Fire Safety Section, AAR-422 Atlantic City Int'l Airport, NJ USA 10.5” 20.4” 17.8”

10 PROGRESS/CURRENT STATUS Internal View, New Connectivity Box for the Halonyzer II International Aircraft Systems Fire Protection Working Group Wilson, NC 17-18July2001 Federal Aviation Administration WJ Hughes Technical Center, Fire Safety Section, AAR-422 Atlantic City Int'l Airport, NJ USA Power Supply Cooling fan Releasing Controls A-D boards Signal handling circuitry


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