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Wed, Feb 18, 2009

AD: Rolls-Royce

AD NUMBER: 2009-04-03
MANUFACTURER: Rolls Royce
SUBJECT: Airworthiness Directive 2009-04-03
SUMMARY:
The FAA is adopting a new airworthiness directive (AD) for Rolls-Royce Corporation (RRC) AE 3007A1E and AE 1107C turbofan/turboshaft engines.

This AD requires removal from service of certain 2nd stage, 3rd stage, and 4th stage compressor wheels, compressor cone shaft assemblies, and 1st to 2nd-stage turbine spacers at new, reduced, published life limits.

This AD results from RRC applying an updated lifing methodology to the affected parts.

We are issuing this AD to prevent low-cycle-fatigue failure of the parts listed in Table 1 of this AD, which could result in an uncontained engine failure and damage to the aircraft.

FMI: www.faa.gov/regulations_policies/airworthiness_directives/

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