Airworthiness Directives; General Electric Company Turbofan Engines
airworthiness · Rule · Final rule. · Published 2021-12-21 · Effective 2022-01-25 · 86 FR 72178
Document
Document number
2021-27480
Federal Register citation
86 FR 72178
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
General Electric Company Turbofan
Publication date
2021-12-21
Effective date
2022-01-25
FAA docket
Docket No. FAA-2021-0869
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain General Electric Company (GE) CF34-8C and CF34-8E model turbofan engines. This AD was prompted by a report of a quality escape during the manufacturing of a high-pressure turbine (HPT) rotor stage 1 disk. This AD requires removing the HPT rotor stage 1 disk from service and replacing the HPT rotor stage 1 disk with a part eligible for installation. The FAA is issuing this AD to address the unsafe condition on these products.