# Airworthiness Directives; Rolls-Royce plc Turbofan Engines
> **Rule** · Final rule; request for comments. · Published 2012-05-31 · Effective 2012-06-15 · 77 FR 32007
## Document
- **Document number:** 2012-13081
- **Category:** airworthiness
- **Manufacturer:** Rolls-Royce plc Turbofan
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 77 FR 32007
- **Publication date:** 2012-05-31
- **Effective date:** 2012-06-15
- **FAA docket:** Docket No. FAA-2012-0418
## Abstract

We are adopting a new airworthiness directive (AD) for all Rolls-Royce plc (RR) RB211-Trent 800 series turbofan engines. This AD requires removal from service of certain critical engine parts based on reduced life limits. This AD was prompted by RR adding a new flight profile and an associated set of life limits. We are issuing this AD to prevent the failure of critical rotating parts, which could result in uncontained failure of the engine and damage to the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/05/31/2012-13081/airworthiness-directives-rolls-royce-plc-turbofan-engines)
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