Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG Turbofan Engines
airworthiness · Rule · Final rule. · Published 2017-09-26 · Effective 2017-10-31 · 82 FR 44713
Document
Document number
2017-20531
Federal Register citation
82 FR 44713
Type
Rule
Action
Final rule.
Category
airworthiness
Manufacturer
Rolls-Royce Deutschland Ltd & Co KG Turbofan
Publication date
2017-09-26
Effective date
2017-10-31
FAA docket
Docket No. FAA-2017-0140
Abstract
We are adopting a new airworthiness directive (AD) for certain Rolls-Royce Deutschland Ltd & Co KG (RRD) model Tay 620-15 turbofan engines. This AD requires reducing the maximum approved life limit. This AD was prompted by RRD recalculating the life limit for certain high-pressure compressor (HPC) stage 12 rotor disks. We are issuing this AD to correct the unsafe condition on these products.