aircraft wiring and inert gas generator working group 19 june 2002 deputy asst secretary of the navy...

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

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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)


(Research, Development & Acquisition)


(Installations &Environment)


(Installations &Environment)


(Financial Mgmt& Comptroller))


(Financial Mgmt& Comptroller))


(Manpower &Reserve Affairs)


(Manpower &Reserve Affairs)

Deputy AssistantSecretary of the Navy

(Safety)

Deputy AssistantSecretary of the Navy

(Safety)

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Office established September 2001 Combined OSH and Safety & Survivability Offices

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Vision Maximize combat-readiness of DoN forces

• Safety - fundamental element

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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

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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

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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

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Identify options for dealing with existent wiring threats

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Identify options for dealing with existent wiring threatsOptimize resource expenditures for addressing these threats by minimizing duplicative research efforts among Government and Commercial entities

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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

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ThreatsThreats

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ThreatsThreats

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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

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Aircraft wiring Wire protection

• Arc Fault Circuit Breaker

• Ground Fault Sensing Circuitry

• Proactive Fault Detection

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Aircraft wiring New type insulation materials

• High Strength

• Composites

• Heat Sensitive Coating

Severe environment cables Improved performance specifications

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Aircraft wiring Potential replacements for conventional wire

• Ribbonized/Organized Wire

• Fiber optics

• Wireless (Bluetooth)

• “Smart Wire”

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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

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Aircraft wiring General information sharing

• Accident investigation results

• Policy issues– NTSB

– FAA

– DoD

– Commercial operators

• Media perspective

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Aircraft wiring General information sharing

• Research & Development– Commercial/Industry efforts

– DoD

– FAA

– NASA

– Lawrence Livermore National Laboratory

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Fire Suppression Inert Gas Generator Water Mist

• High pressure

• Low pressure

Nitrogen Pressurization Aerosol Fire Suppressants Fuel Tank Inerting

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Fire Detection AFDAMS

• Automatic Fire Detection and Monitoring System

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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

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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

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May 2000 DemonstrationMay 2000 Demonstration

Test Aircraft

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Low Pressure Water Mist Activation

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Pyrogen Aerosol Canister

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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

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August 2001 DemonstrationAugust 2001 Demonstration

DC-9 Aircraft Interior Configuration

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Water Mist Nozzle Between Stowage Bins

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Pyrogen Aerosol Canister Installation

6/19/02 32AFDAMS


AFDAMS Readout

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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)

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Contact UsContact Us

Joel Walker

703-354-0700

[email protected]

aircraft wiring and inert gas generator working group 19 june 2002 deputy asst secretary of the navy...

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