The US Federal Aviation Administration last week ordered the fuselage
insulation in nearly 700 commercial aircraft to be replaced within the next four
years. An FAA study found that the Mylar insulation lining the fuselage actually
help to fire to spread, prompting suspicions about the spread of fire in last
year’s Swiss Air crash. Other insulation materials also marginally failed the
FAA’s new tests, but will not be replaced.
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