Leonardo S.p.A. Model AW169 and AW189 helicopters Emergency Airworthiness Directive AD #: 2018-23-52. This Emergency Airworthiness Directive (AD) 2018-23-52 is being sent to owners and operators of Leonardo S.p.A. Model AW169 and AW189 helicopters. This emergency AD was prompted by an accident of a Model AW169 helicopter. This emergency AD requires inspecting the tail rotor (T/R) servo-actuator feedback lever link, applying a paint stripe or torque seal on a nut, and reporting information. ...


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