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Fri, Oct 24, 2008

AD: General Electric

AD NUMBER: 2008-21-11
MANUFACTURER: General Electric
SUBJECT: Airworthiness Directive 2008-21-11
SUMMARY: The FAA is adopting a new airworthiness directive (AD) for General Electric Company (GE) CF6-80C2 series and CF6-80E1 series turbofan engines.

This AD requires installing skin doubler pads and deflectors on stage 5 of certain low-pressure turbine (LPT) cases, or replacing those LPT cases with LPT cases that have skin doubler pads and deflectors already installed.

This AD results from four events in which hardware fragments were liberated into the engine flow path and wore through LPT cases on CF6-80C2 and CF6-80E1 series engines.

We are issuing this AD to prevent an uncontained release of engine debris and loss of the structural integrity of the mount system that supports the engine. Loss of the mount system structural integrity could result in the engine separating from the airplane.

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

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