Airworthiness Directives; Fairchild Aircraft SA226 and SA227 Series Airplanes

Résumé

This document proposes to adopt a new airworthiness directive (AD) that would apply to Fairchild Aircraft SA226 and SA227 series airplanes. The proposed action would require replacing the nuts that attach the power control cable to the lever attach point clevis with nuts that have safety wire holes, and safety wiring the power control cable to the lever attach point clevis; and inspecting to assure that the power cable is securely attached to the power control cable bracket, and correcting any attachment problems. Reports of power control cable attaching hardware failure on two of the affected airplanes prompted the proposed action. In one of these instances, the power control cable disconnected from the lever attach point clevis, resulting in engine shutdown. The actions specified by the proposed AD are intended to prevent such power control cable disconnection, which, if not detected and corrected, could result in engine shutdown and subsequent loss of control of the airplane.