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Final rule; request for comments.

The FAA is adopting a new airworthiness directive (AD) for certain Leonardo S.p.a. Model AW189 helicopters. This AD was prompted by a report of the bubble window departing from the helicopter during flight. This AD requires installation of a new improved bubble window kit, as specified in a European Aviation Safety Agency (now the European Union Aviation Safety Agency) (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.

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