AD NUMBER: 2006-11-14
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
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.