Airworthiness Directives (ADs)

Aviation Industry

CAA-2020-12-013

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.

Issue Date: 2020/12/29

Applicability: GE model GEnx-1B67/P2, GEnx-1B70/75/P2, GEnx-1B70/P2, GEnx-1B70C/P2, GEnx-1B74/75/P2, GEnx-1B76/P2, and GEnx-1B76A/P2 model turbofan engines that have a high-pressure turbine (HPT) rotor stage 2 disk, part number (P/N) 2383M86P02, and a serial number (S/N) listed in paragraph 4, Appendix–A, Table 1, Table 2, or Table 3, of GE GEnx-1B Service Bulletin (SB) 72-0463 R01, dated January 6, 2020, installed. and GEnx-2B67/P model turbofan engines that have a HPT rotor stage 2 disk, P/N 2383M86P02, and a S/N listed in paragraph 4, Appendix–A, Table 1, Table 2, or Table 3, of GE GEnx-2B SB 72-0402 R01, dated January 8, 2020, installed.

Model Number: General Electric GEnx-1B64/P2, GEnx-1B67/P2, GEnx-1B70/75/P2, GEnx-1B70/P2, GEnx-1B70C/P2, GEnx-1B74/75/P2, GEnx-1B76/P2, GEnx-1B76A/P2, and GEnx-2B67/P model turbofan engines.

CAA AD Number: CAA-2020-12-013

Aeronautics Authority of Original AD: FAA

Original AD Number: 2020-25-10

Effective Date: 2021/01/21

Subject: This AD requires an immersion ultrasonic inspection of the HPT rotor stage 2 disk and, depending on the results of the inspection, replacement of the HPT rotor stage 2 disk with a part eligible for installation.

Reference Publications (Revision/ATA/SB): ATA 72. Ref. GEnx-1B Service Bulletin (SB) 72-0463 R01, dated January 6, 2020, and GEnx-2B SB 72-0402 R01, dated January 8, 2020.

Remarks

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