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Mon, Oct 19, 2015

AD: General Electric Company Turboshaft Engines

AD NUMBER: 2015-20-09

PRODUCT: All General Electric Company (GE) CT58 turboshaft engines.

ACTION: Final Rule

SUMMARY: The FAA is superseding airworthiness directives (AD) 2001-18-06 and AD 2008-22-16, for the products listed above.

AD 2001-18-06 and AD 2008-22-16 required recalculating the lives of life-limited rotating parts using a repetitive heavy-lift (RHL) multiplying factor and removal from service of parts that exceed the recalculated cyclic or hourly life limit.

This new AD would consolidate AD 2001-18-06 and AD 2008-22-16, and further reduce the life capability of certain parts. This AD was prompted by recalculation of life for parts installed on engines used in Utility operations, and a reduced life for compressor spools in all operations.

The FAA is issuing this AD to prevent failure of life-limited rotating parts, uncontained part release, damage to the engine, and damage to the aircraft.

DATES: This AD is effective November 18, 2015.

FMI: AD

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