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Fri, Jun 27, 2008

AD: Pratt & Whitney

AD NUMBER: 2008-13-16
MANUFACTURER: Pratt & Whitney
SUBJECT: Airworthiness Directive 2008-13-16
SUMMARY:
We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as: There have been two incidents of fan blade dislodgements due to blade fracture on relatively hi-time PW305 engines (over 5000 Hrs). The blade dislodgement in both cases was contained. However, engine installations sustained considerable collateral damage. The root cause of fan blade fracture was determined to be the under-minimum material condition at the fracture location. This AD requires actions that are intended to address the unsafe condition described in the MCAI, which could result in an engine shutdown and damage to the airplane.

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

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