Summary
We are adopting a new airworthiness directive (AD) for all CFM International S.A. (CFM) LEAP-1B21, LEAP-1B23, LEAP-1B25, LEAP-1B27, LEAP-1B28, LEAP-1B28B1, LEAP-1B28B2, LEAP-1B28B2C, LEAP-1B28B3, LEAP- 1B28BBJ1, and LEAP-1B28BBJ2 turbofan engines with a certain high- pressure turbine (HPT) stator case (HPT cases) installed. This AD requires removal of affected HPT cases from service and their replacement with a part eligible for installation. This AD was prompted by the discovery of a quality escape at a manufacturing facility involving unapproved welds on HPT cases. We are issuing this AD to address the unsafe condition on these products.
Directive Details
AD Number
FAA-2018-0869
Document Number
2018-26026
Type
Rule
Publication Date
November 30, 2018
Effective Date
December 17, 2018
Affected Manufacturer
CFM International S.A. Turbofan
Criticality
routine
Emergency
No
Docket ID
Docket No. FAA-2018-0869
Topics
Official Documents
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