Airworthiness Directives; Canadair Model CL-215-1A10 and CL 215- 6B11 Series Airplanes That Are Not Equipped With Powered Ailerons

摘要

This amendment revises an existing airworthiness directive (AD), applicable to certain Canadair Model CL-215-1A10 series airplanes, that currently requires modification of the right aileron and aileron tab. That AD originally was prompted by an updated flutter analysis performed by the manufacturer, which revealed a potential flutter condition on these airplanes. The actions specified in that AD are intended to prevent potential flutter of the rudder-aileron interconnect tab, which could result in reduced controllability of the airplane. This amendment revises the applicability of the rule by adding additional airplanes that are subject to the addressed unsafe condition, and deleting others that are not subject to it.