# Airworthiness Directives; Rolls-Royce plc Turbofan Engines
> **Rule** · Final rule; request for comments. · Published 2017-08-28 · Effective 2017-09-12 · 82 FR 40681
## Document
- **Document number:** 2017-18133
- **Category:** airworthiness
- **Manufacturer:** Rolls-Royce plc Turbofan
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 82 FR 40681
- **Publication date:** 2017-08-28
- **Effective date:** 2017-09-12
- **FAA docket:** Docket No. FAA-2017-0652
## Abstract

We are adopting a new airworthiness directive (AD) for certain Rolls-Royce plc (RR) Trent XWB-75, Trent XWB-79, Trent XWB-79B, and Trent XWB-84 turbofan engines. This AD requires inspection of the intermediate-pressure (IP) turbine stage 2 locking plates. This AD was prompted by a report of several IP turbine stage 2 locking plates cracked during module assembly. We are issuing this AD to correct the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/08/28/2017-18133/airworthiness-directives-rolls-royce-plc-turbofan-engines)
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