AGUSTA Model A109E helicopters [Docket No. FAA-2013-0146; Directorate Identifier 2012-SW-060-AD; Amendment 39-17559; AD 2013-16-21] – supersedes an AD that required reducing the tail rotor (T/R) blade life limit, modifying a T/R hub and grip assembly, reidentifying two T/R assemblies, clarifying the...

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