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Tue, Feb 25, 2014

AD: Turbomeca S.A. Turboshaft Engines

AD NUMBER: 2014-04-06

PRODUCT: All Turbomeca S.A. Arrius 2B1, 2B1A, 2B2, and 2K1 turboshaft engines.
SUBJECT: Airworthiness Directive 2014-04-06
ACTION: Final Rule

SUMMARY: This AD requires initial and repetitive inspections of the hydro-mechanical metering unit (HMU) high pressure pump drive gear shaft splines, cleaning and inspections of the sleeve assembly splines, and replacement of the HMU if it fails inspection. This AD was prompted by in-flight shutdowns caused by interrupted fuel supply at the HMU.

The FAA is issuing this AD to prevent in-flight shutdown and damage to the engine.

DATES: This AD becomes effective March 31, 2014.

FMI: AD

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