Agenda

TWA 800 Overview

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Evidence of In-Flight Breakup

Wreckage Dispersion: Red, Yellow, and Green Zones

Possible Causes of In-Flight Breakup

No Evidence of Structural Failure and Decompression

No Evidence of
High-Energy Explosion

Participants in
Examination of Wreckage

Reconstruction shows no evidence of large holes suggestive of missile penetration.

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Physical Evidence Consistent with Fuel/Air Vapor Explosion in Center Wing Tank

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Questions Raised

JFK FLIGHT TEST

Flight Test and Flammability Research Showed

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Conclusions Regarding Fuel/Air Vapor Explosion

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Very Unlikely Ignition Sources

Most Likely Ignition Scenario

Maintenance and Aging Aircraft Issues

Six Safety Board safety  recommendations issued to the FAA in April 1998 regarding aircraft wiring and potential fuel tank ignition sources

FAA Initiatives to Address Aging Systems

Current Design and Certification Philosophy

Flaws in the Current Design and Certification Philosophy

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No Flammable Vapor = No Accident

December 1996 Safety Recommendations to the FAA

FAA Response to December 1996 Safety Recommendations

Certification Issues for Future Consideration

Witness Observations

Safety Issues Identified During the TWA 800 Accident Investigation

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