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Mon, Jun 27, 2005

AD: Turbomeca

AD NUMBER: 2005-13-25
MANUFACTURER: Turbomeca
SUBJECT: Airworthiness Directive 2005-13-25
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for Turbomeca S.A. Arriel 2B turboshaft engines with Modification TU62A incorporated. This AD results from several reports of the hydro mechanical unit (HMU) acceleration controller axle sticking.

This AD requires initial and repetitive inspections, cleaning, lubrication, and checks for proper operation of the HMU acceleration controller axle. We are issuing this AD to prevent loss of control of engine fuel flow in manual control mode or mixed control mode, leading to engine overspeed and in-flight engine shutdown, or uncommanded in-flight engine shutdown.

FMI: www.airweb.faa.gov/ad

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