A380. Courtesy, Airbus Modifications to repair wing rib cracks on in-service Airbus A380s will begin in the first quarter of 2013 and the composite material at the root of the problem will no longer be used on new-production aircraft delivered from 2014. The cracks issue, discovered early this year, resulted from a carbon fiber-aluminum material known as 7449 that was used in A380 wing rib feet construction. The material was selected because it is both lightweight and strong, but it ...

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