Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG (Type Certificate Previously Held by Rolls-Royce plc) Turbofan Engines
airworthiness · Rule · Final rule. · Published 2020-11-13 · Effective 2020-12-18 · 85 FR 72558
Document
Document number
2020-25106
Federal Register citation
85 FR 72558
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Rolls-Royce Deutschland Ltd & Co KG (Type Certificate Previously Held by Rolls-Royce plc) Turbofan
Publication date
2020-11-13
Effective date
2020-12-18
FAA docket
Docket No. FAA-2019-0213
Abstract
The FAA is adopting a new airworthiness directive (AD) for certain Rolls-Royce Deutschland Ltd & Co KG (RRD) Tay 611-8C model turbofan engines. This AD was prompted by reports of low-pressure compressor (LPC) rotor blade retention lug failure. This AD requires limiting the service life of the LPC rotor blades based on the number of dry-film lubricant (DFL) re-applications. The FAA is issuing this AD to address the unsafe condition on these products.