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Mon, Dec 30, 2013

AD: Turbomeca S.A. Turboshaft Engines

AD NUMBER: 2013-24-05

PRODUCT: Certain Turbomeca S.A. Arriel 1A1, 1A2, 1B, 1C, 1C1, 1C2, 1D, 1D1, 1E2, 1K1, 1S, and 1S1 turboshaft engines.
SUBJECT: Airworthiness Directive 2013-24-05
ACTION: Final Rule

SUMMARY:  This AD requires a one-time inspection of the free turbine (FT) module (M04) for the affected Turbomeca S.A. Arriel 1 engines and, if a discrepancy is found, repair of the affected module. This AD was prompted by a 'chip illumination event' in flight on a Turbomeca S.A. Arriel 1 engine.

The FAA is issuing this AD to prevent a loss of FT bearing lubrication, resulting in FT module failure, damage to the engine, and damage to the aircraft.

DATES: This AD becomes effective January 28, 2014.

FMI: AD

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