Airworthiness Directives (ADs)
CAA-2021-09-001
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
- 2021/09/07
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Applicability
- Model 747-100, -100B, -100B SUD, -200B, -200C, -200F, -300, -400, -400D, -400F, 747SR, and 747SP airplanes, certificated in any category.
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Model Number
- Boeing Model 747-100, -100B, -100B SUD, -200B,
-200C, -200F, -300, -400, -400D, -400F,
747SR, and747SP airplanes.
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CAA AD Number
- CAA-2021-09-001
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Aeronautics Authority of Original AD
- FAA
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Original AD Number
- 2021-17-06
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Effective Date
- 2021/10/05
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Subject
- This AD requires repetitive detailed and surface high frequency eddy current inspections of the front spar shear tie and intercostal lug fitting at certain locations of wing center section for any cracking, and applicable on-condition actions.
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Reference Publications (Revision/ATA/SB)
- ATA 53. Ref. Boeing Alert Requirements Bulletin 747-53A2904 RB, dated December 16, 2020.
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Remarks
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