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Tue, Aug 21, 2018

AD: Rolls-Royce Corporation Engines

AD NUMBER: 2018-17-04

PRODUCT: Certain Rolls-Royce Corporation (RRC) AE 2100D2A and AE 2100D3 model turboprop engines and AE 3007A2 model turbofan engines.

ACTION: Final Rule.

SUMMARY: This AD was prompted by the possibility of a low-cycle fatigue failure on certain turbine wheels.

This AD requires removing the affected turbine wheels at the next engine shop visit or before reaching the new reduced life limit, whichever occurs first, and replacing them with parts eligible for installation.

DATES: This AD is effective September 21, 2018.

COST: The FAA estimates that this AD affects nine engines installed on airplanes of U.S. registry. The cost of compliance is estimated as follows:
Replace turbine wheels: Parts - $160,829. Total cost - $160,829 per engine.

FMI: AD

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