# Airworthiness Directives; Rolls-Royce Deutschland Ltd & Co KG (RRD) Turbofan Engines
> **Rule** · Final rule; rescission. · Published 2012-07-02 · Effective 2012-08-06 · 77 FR 39156
## Document
- **Document number:** 2012-15961
- **Category:** airworthiness
- **Manufacturer:** Rolls-Royce Deutschland Ltd & Co KG (RRD) Turbofan
- **Type:** Rule
- **Action:** Final rule; rescission.
- **Citation:** 77 FR 39156
- **Publication date:** 2012-07-02
- **Effective date:** 2012-08-06
- **FAA docket:** Docket No. FAA-2008-0224
## Abstract

We are rescinding an airworthiness directive (AD) for RRD BR700-715A1-30, BR700-715B1-30, and BR700-715C1-30 turbofan engines. The existing AD resulted from the need to reduce the published life limits of high-pressure (HP) turbine stage 1 discs, part numbers (P/Ns) BRH20130 and BRH20131, and HP turbine stage 2 discs, P/Ns BRH19423 and BRH19427. We are rescinding the existing AD because RRD has revised the approved published life limits of these parts to the same or higher limits as originally certified.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2012/07/02/2012-15961/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-rrd-turbofan-engines)
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