airworthiness · Rule · Final rule; request for comments. · Published 2018-04-12 · Effective 2018-04-27 · 83 FR 15731
Document
Document number
2018-07541
Federal Register citation
83 FR 15731
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Safran Helicopter
Publication date
2018-04-12
Effective date
2018-04-27
FAA docket
Docket No. FAA-2018-0184
Abstract
We are adopting a new airworthiness directive (AD) for certain Safran Helicopter Engines, S.A., Arrius 2B1, 2B1A, 2B2, and 2K1 turboshaft engines. This AD requires inspecting the power turbine wheel (PTW) assembly and replacing the PTW if the turbine blade dampers are found missing. This AD was prompted by the manufacturer reporting a number of PTW assemblies may have been assembled without the blade dampers. We are issuing this AD to address the unsafe condition on these products.