Resumen
We are adopting a new airworthiness directive (AD) for all Safran Helicopter Engines, S.A. Arriel 2B turboshaft engines. This AD requires removing any pre-modification (mod) TU 158 hydro-mechanical metering unit (HMU) and replacing with a part eligible for installation. This AD was prompted by a report of an uncommanded in- flight shutdown (IFSD) on a single-engine helicopter, caused by a low returning spring rate of the needle of the HMU. We are issuing this AD to correct the unsafe condition on these products.
Detalles de la directiva
Número de AD
FAA-2016-7850
Número de documento
2017-04634
Tipo
Rule
Fecha de publicación
March 9, 2017
Fecha de entrada en vigor
April 13, 2017
Fabricante afectado
Safran Helicopter Engines, S.A. Turboshaft
Criticidad
routine
Emergencia
No
Docket ID
Docket No. FAA-2016-7850
Temas
Documentos oficiales
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