S76 Airworthiness Directive
Anyone here about this? What are the implications?
2010-17-16 Sikorsky Aircraft Corporation: Amendment 39-16408; Docket No. FAA-2008-0609; Directorate Identifier 2008-SW-24-AD.
Applicability: Model S-76A, S-76B, and S-76C helicopters, with serial numbers 76005 through 760578, inclusive, and serial number 762976, with any of the following part-numbered vertical stabilizer aft spar assemblies having 1,000 or more hours time-in-service (TIS) installed, certificated in any category.
Compliance: Required as indicated.
To detect and correct an unbalanced or out-of-track tail rotor, which could lead to increased vibrations, a fatigue crack, loss of a portion of the vertical stabilizer, and subsequent loss of control of the helicopter, accomplish the following: ...