Special Conditions: Turbomeca S.A., Model Arriel 2S1 Turboshaft Engine

These special conditions are issued for the Turbomeca S.A., of Bordes, France, Model Arriel 2S1 turboshaft engine. This engine was validated on June 10, 1996, by the Federal Aviation Administration (FAA) and Type Certificate No. E00054EN was issued. The engine will have an additional new novel or unusual engine rating. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain the additional safety standards the Administrator considers necessary to establish a level of safety equivalent to that established by existing airworthiness standards.