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Thu, Jun 01, 2006

AD: Sikorsky

AD NUMBER: 2006-11-14
MANUFACTURER: Sikorsky
SUBJECT: Airworthiness Directive 2006-11-14
SUMMARY:
This amendment adopts a new airworthiness directive (AD) for the specified Sikorsky Aircraft Corporation (Sikorsky) Model S-92A helicopters. 

This action requires inspecting each main transmission assembly mounting bolt (bolt) for wear or corrosion, and if wear or corrosion is found, replacing the bolt, bolt barrel nut, and cage. This amendment is prompted by a report of a failure of a bolt that was discovered during a routine maintenance inspection.

The actions specified in this AD are intended to prevent failure of a bolt, which could result in loss of support of the main transmission and subsequent loss of control of the helicopter.

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

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