Airworthiness Directives (ADs)
CAA-2010-09-003
The aircraft owner or operator shall comply with Airworthiness Directives issued by the CAA or the aeronautics authority of the State of Design (SoD) of the aviation products, appliances and parts, and take all necessary actions thereto.
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Issue Date
- 2010/09/16
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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.
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Model Number
- Sikorsky Aircraft Corporation Model S-76A, S-76B, and S-76C Helicopters
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CAA AD Number
- CAA-2010-09-003
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Aeronautics Authority of Original AD
- FAA
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Original AD Number
- 2010-17-16
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Effective Date
- 2010/10/18
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Subject
- Intended 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.
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Reference Publications (Revision/ATA/SB)
- Sikorsky Alert Service Bulletin (ASB) No. 76-55-20A.
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Remarks
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