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TWA 800

Printed page xvi. PDF page 18.

explosion of the center wing fuel tank (CWT), resulting from ignition of the flammable fuel/air mixture in the tank. The source of ignition energy for the explosion could not be determined with certainty, but, of the sources evaluated by the
Open final report at PDF page 18NTSB AAR-00/03: In-flight breakup, TWA flight 800

TWA 800

Printed page 60. PDF page 78.

detonations at various locations inside and outside the unpressurized fuselage, and 15 fuel/air mixture explosions at various locations on board the unpressurized airplane. The fuel/air mixture explosion tests included one test in which a known fuel/air mixture was explod
Open final report at PDF page 78NTSB AAR-00/03: In-flight breakup, TWA flight 800

TWA 800

Printed page 86. PDF page 104.

additional information regarding heat- and fire-related damage/evidence, research into the fuel/air mixture on board the accident airplane at the time of the accident, the characteristics and combustion behaviors of Jet A vapors,171 and research and testing to identify the po
Open final report at PDF page 104NTSB AAR-00/03: In-flight breakup, TWA flight 800

TWA 800

Printed page 122. PDF page 140.

conditions, the research team was able to identify the conditions (ignition energies, fuel/air mixtures) under which Jet A fuel combustion could occur and to quantify the behavior (flame speeds and peak pressures) that would likely result from such combustion. Two
Open final report at PDF page 140NTSB AAR-00/03: In-flight breakup, TWA flight 800

TWA 800

Printed page 124. PDF page 142.

remaining CWT fuel becoming airborne (known as lofting), resulting in a more flammable fuel/air mixture in the CWT. Examination of the vibration measurement data revealed that the CWT lower skin panel was not subject to vibration of the energy or
Open final report at PDF page 142NTSB AAR-00/03: In-flight breakup, TWA flight 800

TWA 800

Printed page 131. PDF page 149.

A fuel. This included flammability research to identify conditions under which Jet A fuel/air mixtures are flammable and combustion research to determine the characteristics (for example, explosion peak pressures and flame speeds) of Jet A fuel combustion. The issues of
Open final report at PDF page 149NTSB AAR-00/03: In-flight breakup, TWA flight 800