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Aircraft Wiring and Inert Gas Aircraft Wiring and Inert Gas Generator Working GroupGenerator Working Group
19 June 2002
Deputy Asst Secretary of the Navy Deputy Asst Secretary of the Navy (Safety)(Safety)
Connie K. DeWitteConnie K. DeWitte
Deputy Asst Secretary of the Navy Deputy Asst Secretary of the Navy (Safety)(Safety)
Connie K. DeWitteConnie K. DeWitte
6/19/02 3
Deputy Asst Secretary of the Deputy Asst Secretary of the Navy (Safety)Navy (Safety)
Secretary of the NavySecretary of the Navy
Under Secretary of the NavyUnder Secretary of the Navy
Assistant Secretary of the Navy
(Research, Development & Acquisition)
Assistant Secretary of the Navy
(Research, Development & Acquisition)
Assistant Secretary of the Navy
(Installations &Environment)
Assistant Secretary of the Navy
(Installations &Environment)
Assistant Secretary of the Navy
(Financial Mgmt& Comptroller))
Assistant Secretary of the Navy
(Financial Mgmt& Comptroller))
Assistant Secretary of the Navy
(Manpower &Reserve Affairs)
Assistant Secretary of the Navy
(Manpower &Reserve Affairs)
Deputy AssistantSecretary of the Navy
(Safety)
Deputy AssistantSecretary of the Navy
(Safety)
6/19/02 4
Deputy Asst Secretary of the Deputy Asst Secretary of the Navy (Safety)Navy (Safety)
Office established September 2001 Combined OSH and Safety & Survivability Offices
6/19/02 5
Deputy Asst Secretary of the Deputy Asst Secretary of the Navy (Safety)Navy (Safety)
Office established September 2001 Combined OSH and Safety & Survivability Offices
Vision Maximize combat-readiness of DoN forces
• Safety - fundamental element
6/19/02 6
Deputy Asst Secretary of the Deputy Asst Secretary of the Navy (Safety)Navy (Safety)
Office established September 2001 Combined OSH and Safety & Survivability Offices
Vision Maximize combat-readiness of DoN forces
• Safety - fundamental element
Mission Advise Secretary of the Navy on Safety Be a Safety Advocate Provide Policy and Oversight for Safety,
Occupational Health, and Fire Protection
6/19/02 7
AWIGGAWIGG
Founded in 1998 Founder – Richard Healing
Director, Navy Safety & Survivability
Membership• Voluntary
• Government and Industry
• Initially ~ 40 members; today > 400
• Today’s meeting is the 12th AWIGG held
6/19/02 8
AWIGG - PurposeAWIGG - Purpose
Enhance aviation safety in both Government and Commercial aviation sectors by the
sharing of factual information to:
Accurately determine what wiring-related threats exist and the seriousness of such threats
6/19/02 9
AWIGG - PurposeAWIGG - Purpose
Enhance aviation safety in both Government and Commercial aviation sectors by the
sharing of factual information to:
Accurately determine what wiring-related threats exist and the seriousness of such threats
Identify options for dealing with existent wiring threats
6/19/02 10
AWIGG - PurposeAWIGG - Purpose
Enhance aviation safety in both Government and Commercial aviation sectors by the
sharing of factual information to:
Accurately determine what wiring-related threats exist and the seriousness of such threats
Identify options for dealing with existent wiring threatsOptimize resource expenditures for addressing these threats by minimizing duplicative research efforts among Government and Commercial entities
6/19/02 11
AWIGG - PurposeAWIGG - Purpose
Enhance aviation safety in both Government and Commercial aviation sectors by the
sharing of factual information to:
Accurately determine what wiring-related threats exist and the seriousness of such threats
Identify options for dealing with existent wiring threatsOptimize resource expenditures for addressing these threats by minimizing duplicative research efforts among Government and Commercial entitiesReduce the misinformation associated with aircraft wiring issues
6/19/02 12
ThreatsThreats
6/19/02 13
ThreatsThreats
6/19/02 14
Threat MitigationThreat Mitigation
Aircraft wiring Wire inspection
• Automated systems
• Laboratory analysis– Identify proximate failure modes
– Predict wire “life” remaining
• Enhanced visual techniques– Optical
– IR
• Damaged Wiring Systems Risk Assessment
6/19/02 15
Threat MitigationThreat Mitigation
Aircraft wiring Wire protection
• Arc Fault Circuit Breaker
• Ground Fault Sensing Circuitry
• Proactive Fault Detection
6/19/02 16
Threat MitigationThreat Mitigation
Aircraft wiring New type insulation materials
• High Strength
• Composites
• Heat Sensitive Coating
Severe environment cables Improved performance specifications
6/19/02 17
Threat MitigationThreat Mitigation
Aircraft wiring Potential replacements for conventional wire
• Ribbonized/Organized Wire
• Fiber optics
• Wireless (Bluetooth)
• “Smart Wire”
6/19/02 18
Threat MitigationThreat Mitigation
Aircraft wiring Programmatic initiatives
• ATSRAC, EAPAS, CHROME/NAVWAG
• Improved maintenance/training
• Improved data collection
• Selective wire replacement efforts
• Organizational specific initiatives– Military Services, FAA, NASA
– Commercial operators / aircraft manufacturers
– Manufacturers of wiring and related components
6/19/02 19
Threat MitigationThreat Mitigation
Aircraft wiring General information sharing
• Accident investigation results
• Policy issues– NTSB
– FAA
– DoD
– Commercial operators
• Media perspective
6/19/02 20
Threat MitigationThreat Mitigation
Aircraft wiring General information sharing
• Research & Development– Commercial/Industry efforts
– DoD
– FAA
– NASA
– Lawrence Livermore National Laboratory
6/19/02 21
Threat MitigationThreat Mitigation
Fire Suppression Inert Gas Generator Water Mist
• High pressure
• Low pressure
Nitrogen Pressurization Aerosol Fire Suppressants Fuel Tank Inerting
6/19/02 22
Threat MitigationThreat Mitigation
Fire Detection AFDAMS
• Automatic Fire Detection and Monitoring System
6/19/02 23
AWIGG AccomplishmentsAWIGG Accomplishments
Open sharing of information Combining of resources
Meetings hosted by member organizations Government-Industry proof-of-concept demos
Providing networking opportunities Ensuring professionals with common
interests remain cognizant of others’ efforts
6/19/02 24
AWIGG AccomplishmentsAWIGG Accomplishments
Proof-of-concept demonstrations May 2000
• Test aircraft: B-737 aircraft removed from service
• Water mist fire suppression systems– High and low pressure systems
– Actual fires set in lavatory, galley, passenger seats, overhead stowage bins
• Pyrogen aerosol fire suppression system– Actual fires set in aircraft electronics equipment bay
• Arcing wire– Test setups with water mist and Pyrogen aerosol
6/19/02 25
May 2000 DemonstrationMay 2000 Demonstration
Test Aircraft
6/19/02 26
May 2000 DemonstrationMay 2000 Demonstration
Low Pressure Water Mist Activation
6/19/02 27
May 2000 DemonstrationMay 2000 Demonstration
Pyrogen Aerosol Canister
6/19/02 28
AWIGG AccomplishmentsAWIGG Accomplishments
Proof-of-concept demonstrations August 2001
• Test aircraft: DC-9 placed in Experimental Status
• Water mist fire suppression system – Twin fluid, low pressure water mist
– Tests conducted in passenger compartment on ground and in-flight
• Pyrogen aerosol fire suppression system – Aircraft electronics equipment bay on ground only
• AFDAMS– Aircraft passenger compartment in-flight
6/19/02 29
August 2001 DemonstrationAugust 2001 Demonstration
DC-9 Aircraft Interior Configuration
6/19/02 30
August 2001 DemonstrationAugust 2001 Demonstration
Water Mist Nozzle Between Stowage Bins
6/19/02 31
August 2001 DemonstrationAugust 2001 Demonstration
Pyrogen Aerosol Canister Installation
6/19/02 32AFDAMS
August 2001 DemonstrationAugust 2001 Demonstration
AFDAMS Readout
6/19/02 33
AWIGG’s FutureAWIGG’s Future
To be determined by membership support Increased resource sharing needed
Review focus, and redefine as necessary Continue open sharing of information Remain focused on existent aircraft systems Increase focus on future acquisitions
• Place greater emphasis on ensuring today’s knowledge is used to minimize tomorrow’s problems
AGENDAAGENDA19 June 2002
« « Morning Agenda Morning Agenda »»
9:00 – 9:30 Welcome/Introduction Connie DeWitteDASN(S)
9:30 – 9:45 NTSB Response to FAA Bob SwaimWiring Actions NTSB
9:45 – 10:00 Wire Investigation Technique Bob SwaimUsing Computerized Tomography NTSB
10:00 – 10:45 SwissAir 111 Accident Investigation John BrittenOverview TSB of Canada
10:45 – 11:00 Break
11:00 – 11:30 DoN Wire System Reporting Codes Pall ArnasonNAVAIRSYSCOM
11:30 – 12:00 Power Management and Distribution John BlumerSystems Boeing Phantom
Works
« « Afternoon Agenda Afternoon Agenda »»
12:00 – 1:15 Lunch
1:15 – 2:00 Space Shuttle Wire Testing Vince Press/Bill LinzeyProgram Lectromec
Joe DailedaBoeing
2:00 – 2:30 DoN Aircraft Wiring Information Tom KowalskiSystem NAVAIRSYSCOM
2:30 – 2:45 Break
2:45 – 3:30 Comparison of Aging Characteristics Phil LaCourtfor Various Polyimide Wire Insulation DuPontMaterials
3:30 – 3:45 Wrap-up Connie DeWitteDASN(S)
6/19/02 37
Contact UsContact Us
Joel Walker
703-354-0700
jwalker@quadelta.com
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