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Sun, May 02, 2010

AD: GE

AD NUMBER: 2010-01-04

MANUFACTURER: General Electric Company (GE) CF34-1A, CF34-3A, and CF34-3B Series Turbofan Engines
SUBJECT: Airworthiness Directive 2010-01-04

SUMMARY: The FAA is superseding an existing airworthiness directive (AD) for GE CF34-1A, CF34-3A, and CF34-3B series turbofan engines. That AD currently requires removing from service certain part number (P/N) and serial number (S/N) fan blades within compliance times specified in the AD, inspecting the fan blade abradable rub strip on certain engines for wear, inspecting the fan blades on certain engines for cracks, inspecting the aft actuator head hose fitting for correct position, and, if necessary, repositioning the hose fitting. This ad supersedure requires the same actions but corrects the effectivity for certain fan blades requiring corrective actions and changes the effective date of the current AD. This AD supersedure results from the FAA discovering that the existing AD has an incorrect effectivity for certain fan blades requiring corrective actions, and from a report of an under-cowl fire and a failed fan blade. We are issuing this AD to prevent failure of certain P/N and S/N fan blades and aft actuator head hoses, which could result in an under-cowl fire and subsequent damage to the airplane.

FMI: http://rgl.faa.gov/Regulatory_and_Guidance_Library/rgAD.nsf/0/483C4FAFA9FFBEA8862577150049ED33?OpenDocument

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