Airworthiness Directives (ADs)
CAA-2020-10-006
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
- 2020/10/12
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Applicability
- Model 747-400, -400D, and -400F series airplanes, certificated in any category, excluding the airplanes identified in paragraphs (c)(1) and (2) of this AD.
(1) Airplanes equipped with a flammability reduction means (FRM) approved by the FAA as compliant with the fuel tank flammability reduction (FTFR) requirements of 14 CFR 25.981(b) or 26.33(c)(1).
(2) Airplanes equipped with an ignition mitigation means (IMM) approved by the FAA as compliant with the FTFR requirements of 14 CFR 25.981(c) or 26.33(c)(2).
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Model Number
- Boeing 747-400, 747-400D, and
747-400F series airplanes.
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CAA AD Number
- CAA-2020-10-006
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Aeronautics Authority of Original AD
- FAA
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Original AD Number
- 2020-18-02
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Effective Date
- 2020/11/10
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Subject
- This AD requires modifying the fuel quantity indicating system to prevent development of an ignition source inside the center fuel tank due to electrical fault conditions.
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Reference Publications (Revision/ATA/SB)
- ATA 28. Ref. Boeing Service Bulletin 747-28-2340, dated June 6, 2014.
and Boeing Service Bulletin 747-28-2344, dated October 12, 2018.
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Remarks
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