# Airworthiness Directives; Rolls-Royce plc Turbofan Engines
> **Rule** · Final rule. · Published 2018-09-27 · Effective 2018-11-01 · 83 FR 48703
## Document
- **Document number:** 2018-21032
- **Category:** airworthiness
- **Manufacturer:** Rolls-Royce plc Turbofan
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 83 FR 48703
- **Publication date:** 2018-09-27
- **Effective date:** 2018-11-01
- **FAA docket:** Docket No. FAA-2017-0650
## Abstract

We are adopting a new airworthiness directive (AD) for certain Rolls-Royce plc (RR) RB211-Trent 875-17, RB211-Trent 877-17, RB211- Trent 884-17, RB211-Trent 884B-17, RB211-Trent 892-17, RB211-Trent 892B-17, and RB211-Trent 895-17 turbofan engines. This AD was prompted by low-pressure compressor (LPC) case A-frame hollow locating pins that may have reduced integrity due to incorrect heat treatment. This AD requires replacement of the LPC case A-frame hollow locating pins. We are issuing this AD to address the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2018/09/27/2018-21032/airworthiness-directives-rolls-royce-plc-turbofan-engines)
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