交通部民用航空局

發布日期

2019/06/25

適用性說明

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.

型別

CFM International S.A. (CFM) CFM56-5B, CFM56-5C, and CFM56-7B model turbofan engines

民航局AD編號

CAA-2019-06-010(已被CAA-2021-08-007取代)

原發布國

FAA

原AD編號

2019-12-05

生效日期

2019/07/05

主旨摘要

This AD requires replacement of the affected rotating air HPT front seal because of cracks found.

參考資訊（版本/ATA/SB）

None.

存檔序號

108-06-011

專業分項

Powerplant

產品類別

Airplane

備註

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