Boeing discovered that age and contamination had affected the fireproof properties of the film that covers the insulation.
The film was made between 1981 and 1988 and the FAA believes it was installed on 831 U.S.-registered Boeing 700-series jetliners.
The FAA is still considering how the film may be modified to meet the requirement.
|Quoting Lehpron (Reply 2):|
Boeing discovered this more than 20 years ago, but it took an accident that happened 5 years ago for the FAA to force Boeing to fix it? Which organization did not prioritize safety?
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