Airworthiness Directives (ADs)
CAA-2019-06-010(已被CAA-2021-08-007取代)
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
- 2019/06/25
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Applicability
- This AD applies to: (1) CFM International S.A. (CFM) CFM56-5B1, -5B2, -5B4, -5B5, -5B6, -5B7, -5B1/P, -5B2/P, -5B3/P, -5B4/P, -5B5/P, -5B6/P, -5B7/P, -5B8/P, -5B9/P, -5B3/P1, -5B4/P1, -5B1/2P, -5B2/2P, -5B3/2P, -5B4/2P, -5B6/2P, -5B9/2P, -5B3/2P1, -5B4/2P1, -7B20, -7B22, -7B24, -7B26, -7B27, -7B22/B1, -7B24/B1, -7B26/B1, -7B26/B2, -7B27/B1, -7B27/B3, -7B20/2, -7B22/2, -7B24/2, -7B26/2, -7B27/2, -7B27A model turbofan engines with a:
(i) rotating air high-pressure turbine (HPT) front seal:
(A) with part number (P/N) 1795M36P01 or P/N 1795M36P02 and serial numbers (S/Ns) GWNDN949 through GWNSE969 or S/Ns GWN000CE through GWN0990L, not including S/Ns GWN08ND7, GWN0923A, GWN0971E, GWN098A1, GWN098W6, GWN098W8, GWN098WA, and GWN0990G, installed;
(B) that has been removed from the original HPT disk and re-assembled to a different HPT disk; and
(C) that has 6,001 or more cycles since being reconfigured.
(ii) [Reserved]
(2) CFM CFM56-5C2, -5C2/4, -5C2/F, -5C2/F4, -5C2/G, -5C2/G4, -5C2/P, -5C3/F, -5C3/F4, -5C3/G, -5C3/G4, -5C3/P, -5C4, -5C4/1, -5C4/P, -5C4/1P model turbofan engines with a: (i) rotating air HPT front seal: (A) with P/N 1795M36P01 or P/N 1795M36P02 and S/Ns GWNDN949 through GWNSE969 or S/Ns GWN000CE through GWN0990L, not including S/Ns GWN08ND7, GWN0923A, GWN0971E, GWN098A1, GWN098W6, GWN098W8, GWN098WA, and GWN0990G, installed;
(B) that has been removed from the original HPT disk and re-assembled to a different HPT disk; and
(C) that has 3,751 or more cycles since being reconfigured.
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Model Number
- CFM International S.A. (CFM) CFM56-5B, CFM56-5C, and CFM56-7B model turbofan engines
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CAA AD Number
- CAA-2019-06-010(已被CAA-2021-08-007取代)
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Aeronautics Authority of Original AD
- FAA
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Original AD Number
- 2019-12-05
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Effective Date
- 2019/07/05
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Subject
- This AD requires replacement of the affected rotating air HPT front seal because of cracks found.
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Reference Publications (Revision/ATA/SB)
- None.
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Remarks
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Download
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