# Proposed AD FAA-2008-0224: Rolls-Royce Deutschland Ltd & Co KG (RRD) Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2009-07-01
- Products: Rolls-Royce Deutschland
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM); rescission.
- Published: February 21, 2012, 77 FR 9869
- Comments due: April 23, 2012
- Became: [AD 2009-07-01](https://openairdocs.org/ad/2009-07-01)
- Docket: FAA-2008-0224 (https://www.regulations.gov/docket/FAA-2008-0224, where comments are filed)
- Project: 2007-NE-44-AD
- FR document: 2012-3864
- Official PDF: https://openairdocs.org/files/sha256/72/06/720698e1eda453f0b50dd2f48946bb242a606afd2cd92fc4a8bc7c73d1d3266e (from https://www.govinfo.gov/content/pkg/FR-2012-02-21/pdf/2012-3864.pdf)
- Federal Register: https://www.federalregister.gov/documents/2012/02/21/2012-3864/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-rrd-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D2553042D4C0989C862579AB00502C9B.0001
- Page: https://openairdocs.org/proposed/FAA-2008-0224

## Summary

We propose to rescind 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.

Since we issued the existing AD, RRD has revised the approved published life limits of these parts to the same or higher limits as originally certified.

## Notices in this docket

- Apr 3, 2008: Notice of proposed rulemaking (NPRM). (first notice), FR document E8-6866, comments due May 5, 2008 (https://www.federalregister.gov/documents/2008/04/03/E8-6866/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-rrd-br700-715a1-30-br700-715b1-30-and)
- Feb 21, 2012: Notice of proposed rulemaking (NPRM); rescission., FR document 2012-3864, comments due Apr 23, 2012 (https://www.federalregister.gov/documents/2012/02/21/2012-3864/airworthiness-directives-rolls-royce-deutschland-ltd-and-co-kg-rrd-turbofan-engines)

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