Owners and pilots of Zodiac aircraft may want to keep them on the ground for awhile.

On Nov. 7 the FAA issued a Special Airworthiness Information Bulletin (SAIB) on variants of Zodiac CH601XL and CH650 airplanes because of several in-flight structural failures. In response, Zenith Aircraft Co. has developed an upgrade package to address the concerns in the SAIB, which affects all serial numbers and variants of the aircraft, including S-LSA models, which are produced by AMD LLC in Eastman, Ga.

According to the National Transportation Safety Board, there have been five in-flight structural failures of the CH601XLin the United States since 2005.

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