# Airworthiness Directives; Rolls-Royce plc Turbojet Engines
> **Rule** · Final rule. · Published 2016-03-10 · Effective 2016-04-14 · 81 FR 12585
## Document
- **Document number:** 2016-05319
- **Category:** airworthiness
- **Manufacturer:** Rolls-Royce plc Turbojet
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 81 FR 12585
- **Publication date:** 2016-03-10
- **Effective date:** 2016-04-14
- **FAA docket:** Docket No. FAA-2012-1331
## Abstract

We are superseding airworthiness directive (AD) 2013-11-13 for all Rolls-Royce plc (RR) Viper Mk. 601-22 turbojet engines. AD 2013-11- 13 required reducing the life of certain critical parts. This AD adds two new engine models and additional engine parts to the applicability. This AD was prompted by a determination by RR that additional parts for the RR Viper Mk. 601-22 as well as additional engine models are affected. We are issuing this AD to prevent failure of life-limited parts, which could lead to an uncontained part release, damage to the engine, and damage to the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/03/10/2016-05319/airworthiness-directives-rolls-royce-plc-turbojet-engines)
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