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Tue, Apr 10, 2018

AD: General Electric Company Turbofan Engines

AD NUMBER: 2018-07-05

PRODUCT: All General Electric Company (GE) CF6-80A, -80A1, -80A2, and -80A3 turbofan engines.

ACTION: Final Rule.

SUMMARY:  This AD was prompted by high cycle fatigue (HCF) cracking of the low-pressure turbine (LPT) stage 3 nozzles.

This AD requires replacement of the LPT stage 3 nozzles, part numbers (P/Ns) 9290M52P05 and 9290M52P06, installed.

DATES: This AD is effective May 11, 2018.

COST: The FAA estimates that this AD affects seven engines installed on airplanes of U.S. registry. The cost of compliance is estimated as follows:

Replacement of LPT stage 3 nozzles: $368,260 per aircraft for parts.

FMI: AD

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