|Focus of TWA 800 crash on wiring
WASHINGTON, Sept 14 (Reuters) - National Transportation Safety Board
investigators are focusing on possible sparking from aging wires as
of the 1996 TWA Flight 800 crash off Long Island that killed all 230
James Hall, chairman of the NTSB, told NBC's Today Show that testing
wiring bundles in 25 different planes has focused U.S. aviation officials'
attention on Boeing <<A HREF="aol://4785:BA">BA.N</A>> 747's
system as a possible cause of the accident.
"We are now looking very closely at possible electrical discharges that
have come off of some of that wiring that could have caused the accident
itself," Hall said.
NTSB investigators have long suspected that fumes in the plane's
tank were ignited by some sort of electrical fault.
Hall was speaking from Calverton, Long Island, where the reconstructed
wreckage of TWA 800 was being moved to a smaller hangar Tuesday.
On Monday, USA Today reported that the private laboratory hired by the
to test Poly-X wiring -- the same type used in the destroyed TWA 747
-- found that it sparked more than expected when bundles of it were
Wet-testing simulates what might happen when cracked insulation on electrical
wires is exposed to salt water or waste water from an airplane's galley
For his part, NTSB chairman Hall refused to confirm those results during
NBC News interview, deferring any comment until the safety board's
report is released.
That report is expected early next year.
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