Airworthiness Directives; Eurocopter France Model AS350B, BA, B1, B2, B3, C, D, D1, and EC130 B4 Helicopters

Résumé

This document proposes adopting a new airworthiness directive (AD) for the specified Eurocopter France (ECF) model helicopters. This proposal would require removing and modifying the fuel bleed lever. This proposal is prompted by some cases of loss of the fuel bleed lever in flight. If the tension of the control cable is too low, the cable may vibrate out of its notch, resulting in the fuel bleed lever separating from the hinge. The actions specified by this proposed AD are intended to prevent a fuel bleed lever from separating and striking the tail rotor blade (blade), resulting in damage to or loss of a blade, and subsequent vibration and loss of control of the helicopter.