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Thu, Dec 13, 2007

AD: Agusta

AD NUMBER: 2007-25-14
MANUFACTURER: Agusta
SUBJECT: Airworthiness Directive 2007-25-14
SUMMARY:
We are superseding an existing airworthiness directive (AD) for Agusta S.p.A. (Agusta) Model AB139 helicopters.

This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority to identify and correct an unsafe condition on an aviation product.

The aviation authority of Italy, with which we have a bilateral agreement, states in the MCAI: Field reports have shown that the Agusta AB/AW139's Tailpipe Assembly is prone tocracks.

To prevent any cracks from developing into failure of the exhaust tailpipe assembly * * *This AD retains the requirements of the existing AD, but expands the applicability to include the Agusta Model AW139 helicopters and includes modification procedures to strengthen certain cracked areas that are outside the cowling and are within certain allowable limits.

This AD requires actions that are intended to address the unsafe condition of cracks in the tailpipe assembly.

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

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