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Wed, Dec 14, 2011

AD: Turbomeca Turboshaft Engines

AD NUMBER: 2011-26-02

MANUFACTURER: Turbomeca Arriel 1 Series Turboshaft Engines.
SUBJECT: Airworthiness Directive 2011-26-02.
ACTION: Final rule.

SUMMARY: This AD was prompted by Turbomeca restoring all or part of the life limits of the affected discs, and European Aviation Safety Agency's (EASA) issuance of AD 2010-0101R2, dated March 24, 2011, to do the same. Turbomeca has introduced a reinforced eddy-current inspection (ECI) which, combined with a revised analysis, allows the life limit of the affected discs to be extended. The FAA is issuing this revision to prevent failure of the gas generator (GG) second stage turbine disc which could result in the release of high energy debris and damage to the helicopter.

DATES: This AD is effective January 17, 2012.

FMI: AD

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