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AD: Engine Alliance Turbofan Engines

AD NUMBER: 2015-28-01

PRODUCT: Certain Engine Alliance (EA) GP7270 turbofan engines.

ACTION: Final Rule

SUMMARY: This AD was prompted by the manufacturer informing us that the inspection criteria and repair procedures in the maintenance manual for aft bolt holes of the highpressure compressor (HPC) cone shaft on the affected engines is incorrect.

This AD requires inspection of the HPC cone shaft and repair of affected parts, if needed.

The FAA is issuing this AD to prevent failure of the HPC cone shaft, which could lead to uncontained engine failure and damage to the airplane.

DATES: This AD is effective March 1, 2016.

FMI: AD

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