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 08405 USA tel:609-485-4945 fax:609-485-7074 email:Douglas.A.Ingerson@tc.faa.gov web page:http://www.fire.tc.faa.gov International Halon Replacement Working Group Bremen, Germany 3-4 May 2000 Douglas Ingerson, Federal Aviation Administration WJ Hughes Technical Center, Fire Safety Section, AAR-422 Atlantic City Int'l Airport, NJ 08405 USA

2. Engine Nacelle Halon Replacement, Nacelle Simulator, Aft View Looking Forward International Halon Replacement Working Group Bremen, Germany 3-4 May 2000 Douglas Ingerson, Federal Aviation Administration WJ Hughes Technical Center, Fire Safety Section, AAR-422 Atlantic City Int'l Airport, NJ 08405 USA

3. Engine Nacelle Halon Replacement, Nacelle Simulator, Forward View Looking Aft International Halon Replacement Working Group Bremen, Germany 3-4 May 2000 Douglas Ingerson, Federal Aviation Administration WJ Hughes Technical Center, Fire Safety Section, AAR-422 Atlantic City Int'l Airport, NJ 08405 USA

4. Simulator Status Mechanical assembly of the simulator completed early April 2000 Characterization on-going : –sub-system performance –air flow capacity (mass versus temperature) –fire scenario sensitivities (spray and pool) Planning the first trial of the MPSE –the first "iteration" will be performed with HFC-125 HFC-125 is plentiful on-site CF 3 I will be the first agent run against the full MPSE –only one robust fire cycle will be run –performing this trial to "bug-out" procedures International Halon Replacement Working Group Bremen, Germany 3-4 May 2000 Douglas Ingerson, Federal Aviation Administration WJ Hughes Technical Center, Fire Safety Section, AAR-422 Atlantic City Int'l Airport, NJ 08405 USA

5. Simulator Status Activities in the near future : –9May00 => distribution trial; MPSE step I Expect 3-5 days to smooth procedure out and attain goal HFC-125 simulation will be used to indicate an acceptable profile Halon 1301 will be discharged to verify the results of the simulant effort –16May00 => robust fire search; MPSE step II Planning 5 days minimum to attain goal Expecting difficulty in finding the "right fire" –??May00 => replacement fire challenge; MPSE step III Planning 5 days minimum to attain goal Expecting difficulty in quantifying the mass needed to succeed –? => Quantify concentration with analyzer; MPSE step IV 1 day to perform simplest part of the process –? => begin full MPSE procedure for CF 3 I International Halon Replacement Working Group Bremen, Germany 3-4 May 2000 Douglas Ingerson, Federal Aviation Administration WJ Hughes Technical Center, Fire Safety Section, AAR-422 Atlantic City Int'l Airport, NJ 08405 USA

6. Simulator Characterization, AirflowBehavior International Halon Replacement Working Group Bremen, Germany 3-4 May 2000 Douglas Ingerson, Federal Aviation Administration WJ Hughes Technical Center, Fire Safety Section, AAR-422 Atlantic City Int'l Airport, NJ 08405 USA NSe00411 Corresponds to : 3.8 lbm/s 30 ac/min @ 58°F 35 ac/min @ 130°F Corresponds to : 2.6 lbm/s 21 ac/min @ 58°F 25 ac/min @ 150°F

7. Simulator Characterization, Test Section Average Airflow Temperature International Halon Replacement Working Group Bremen, Germany 3-4 May 2000 Douglas Ingerson, Federal Aviation Administration WJ Hughes Technical Center, Fire Safety Section, AAR-422 Atlantic City Int'l Airport, NJ 08405 USA NSe00410

8. Simulator Characterization, Spray Fire Scenario Image International Halon Replacement Working Group Bremen, Germany 3-4 May 2000 Douglas Ingerson, Federal Aviation Administration WJ Hughes Technical Center, Fire Safety Section, AAR-422 Atlantic City Int'l Airport, NJ 08405 USA