Summary
The FAA is adopting a new airworthiness directive (AD) for certain CFM International, S.A. (CFM) LEAP-1A23, LEAP-1A24, LEAP- 1A24E1, LEAP-1A26, LEAP-1A26CJ, LEAP-1A26E1, LEAP-1A29, LEAP-1A29CJ, LEAP-1A30, LEAP-1A32, LEAP-1A33, LEAP-1A33B2, LEAP-1A35A model turbofan engines. This AD was prompted by an investigation by CFM that showed a subsurface anomaly in a part manufactured using the same material as the LEAP-1A high-pressure turbine (HPT) stage 2 disk. This AD requires an ultrasonic inspection (UI) of the HPT stage 2 disk and replacement of any HPT stage 2 disk that fails the UI with a part eligible for installation. The FAA is issuing this AD to address the unsafe condition on these products.
Directive Details
AD Number
FAA-2020-0729
Document Number
2020-27985
Type
Rule
Publication Date
December 21, 2020
Effective Date
January 25, 2021
Affected Manufacturer
CFM International, S.A. Turbofan
Criticality
routine
Emergency
No
Docket ID
Docket No. FAA-2020-0729
Topics
Official Documents
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