Airworthiness Directives (ADs)
CAA-2011-05-001
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
- 2011/05/05
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Applicability
- To The Boeing Company Model 747-200B, -300, -400, -400D, and -400F
series airplanes; certificated in any category; equipped with Pratt and Whitney 4000 or General
Electric CF6-80C2 series engines, as identified in Boeing Alert Service Bulletin 747-54A2232, dated
April 15, 2010.
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Model Number
- The Boeing Company Model 747-200B, -300, -400, -400D, and -400F
Series Airplanes Powered by Pratt and Whitney 4000 or General Electric CF6-80C2 Series Engines
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CAA AD Number
- CAA-2011-05-001
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Aeronautics Authority of Original AD
- FAA
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Original AD Number
- 2011-09-14
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Effective Date
- 2011/06/06
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Subject
- To detect and correct incorrectly installed mid-pivot bolt ssemblies on the spring beam on the outboard struts.Incorrectly installed bolt assemblies could lead to fatigue cracking and consequent fracturing of the mid-pivot bolt assembly, which could lead to loss of the spring beam load path and the possible separation of a strut and engine from the airplane during flight.
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Reference Publications (Revision/ATA/SB)
- ATA 54. Ref. Service Bulletin 747-54A2232
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Remarks
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