airworthiness · Rule · Final rule; request for comments. · Published 2018-06-15 · Effective 2018-07-02 · 83 FR 27891
Document
Document number
2018-12873
Federal Register citation
83 FR 27891
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Engine Alliance Turbofan
Publication date
2018-06-15
Effective date
2018-07-02
FAA docket
Docket No. FAA-2018-0501
Abstract
We are adopting a new airworthiness directive (AD) for certain Engine Alliance (EA) GP7270, GP7272, and GP7277 turbofan engines. This AD requires a one-time eddy current inspection (ECI) of the engine fan hub blade slot bottom and blade slot front edge for cracks, a visual inspection of the engine fan hub for damage, and removal of parts if damage or defects are found that are outside serviceable limits. This AD was prompted by an uncontained failure of the engine fan hub. We are issuing this AD to address the unsafe condition on these products.