airworthiness · Rule · Final rule; request for comments. · Published 2018-11-08 · Effective 2018-11-23 · 83 FR 55816
Document
Document number
2018-24386
Federal Register citation
83 FR 55816
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Engine Alliance Turbofan
Publication date
2018-11-08
Effective date
2018-11-23
FAA docket
Docket No. FAA-2018-0934
Abstract
We are adopting a new airworthiness directive (AD) for all Engine Alliance (EA) GP7270, GP7272, and GP7277 turbofan engines with a certain high-pressure turbine (HPT) case installed. This AD requires removal of affected HPT stator cases (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.