Sikorsky believes, as we have published in ASB 76-55-21, the effectivity should
also include the aircraft serial number. This wording could be:
"Note All S-76 helicopter serial numbers greater than 760578 but not including
helicopter serial number 762976 are not affected."
This would ease the operator burden for aircraft built after the affected population
of verifying the spar part numbers to show compliance with the AD.
Sikorsky Aircraft Corporation
This is comment on Rule
Airworthiness Directives; Sikorsky Aircraft Corporation Model S- 76A, S-76B, and S-76C Helicopters
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Related Comments
Public Submission Posted: 08/01/2008 ID: FAA-2008-0609-0003
Aug 04,2008 11:59 PM ET