airworthiness · Rule · Final rule; request for comments. · Published 2018-07-23 · Effective 2018-08-07 · 83 FR 34758
Document
Document number
2018-15668
Federal Register citation
83 FR 34758
Type
Rule
Action
Final rule; request for comments.
Category
airworthiness
Manufacturer
Rolls-Royce plc Turbofan
Publication date
2018-07-23
Effective date
2018-08-07
FAA docket
Docket No. FAA-2018-0590
Abstract
We are adopting a new airworthiness directive (AD) for all Rolls-Royce plc (RR) Trent 1000-A, Trent 1000-C, Trent 1000-D, Trent 1000-E, Trent 1000-G, and Trent 1000-H turbofan engine models. This AD requires inspecting the intermediate-pressure compressor (IPC) stage 1 rotor blades, IPC stage 2 rotor blades, and IPC stage 2 dovetail posts, and removing any cracked parts from service. This AD was prompted by crack findings on the IPC rotor blades, which could lead to separations resulting in engine failures. We are issuing this AD to address the unsafe condition on these products.