airworthiness · Rule · Final rule. · Published 2018-07-12 · Effective 2018-08-16 · 83 FR 32203
Document
Document number
2018-14801
Federal Register citation
83 FR 32203
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Rolls-Royce Corporation Turboshaft
Publication date
2018-07-12
Effective date
2018-08-16
FAA docket
Docket No. FAA-2017-1118
Abstract
We are adopting a new airworthiness directive (AD) for certain Rolls-Royce Corporation (RRC) model 250-C turboshaft engines. This AD was prompted by several reports of engine power loss, one of which resulted in a fatal helicopter accident. This AD requires removal of the power turbine governor (PTG) bearing assembly, part number (P/N) 2544198, and its replacement with a bearing assembly eligible for installation. We are issuing this AD to address the unsafe condition on these products.