SAFRAN HELICOPTER ENGINES S.A., Turboshaft Engines [Docket No. FAA-2009-0889; Product Identifier 2009-NE-35-AD; Amendment 39-19305; AD 2018-12-01] The FAA is superseding Airworthiness Directive (AD) 2012-03-11 for all Safran Helicopter Engines, S.A., Arriel 2B and 2B1 turboshaft engines. AD 2012-03-11 required checking the transmissible torque between the low-pressure (LP) pump impeller and the high-pressure (HP) pump shaft on the HP/LP pump and metering valve assembly, hereafter referred to ...

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