# Proposed AD FAA-2007-28059: Rolls-Royce plc Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2008-18-08
- Products: Rolls-Royce
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 11, 2014, 79 FR 54220
- Comments due: November 10, 2014
- Became: [AD 2008-18-08](https://openairdocs.org/ad/2008-18-08)
- Docket: FAA-2007-28059 (https://www.regulations.gov/docket/FAA-2007-28059, where comments are filed)
- Project: 2007-NE-13-AD
- FR document: 2014-21677
- Official PDF: https://openairdocs.org/files/sha256/7b/fa/7bfa238bcba71b599e730132b2cfa8eb3af0a52d527b448d751e9859b5b5f278 (from https://www.govinfo.gov/content/pkg/FR-2014-09-11/pdf/2014-21677.pdf)
- Federal Register: https://www.federalregister.gov/documents/2014/09/11/2014-21677/airworthiness-directives-rolls-royce-plc-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/77A835950D8DA3CA86257D500044CDA9.0001
- Page: https://openairdocs.org/proposed/FAA-2007-28059

## Summary

We propose to supersede airworthiness directive (AD) 2013-15- 10 that applies to certain Rolls-Royce (RR) RB211 turbofan engines. AD 2013-15-10 requires inspecting the intermediate-pressure compressor (IPC) rotor shaft rear balance land for cracks. This AD eliminates a terminating action, expands one inspection and eliminates others. This proposed AD would require inspecting the IPC rotor shaft rear balance land for cracks and eliminate certain other inspections. We are proposing this AD to detect cracking on the IPC rotor shaft rear balance land, which could lead to uncontained engine failure and damage to the airplane.

## Notices in this docket

- Oct 15, 2007: Notice of proposed rulemaking (NPRM). (first notice), FR document E7-20242, comments due Nov 14, 2007 (https://www.federalregister.gov/documents/2007/10/15/E7-20242/airworthiness-directives-rolls-royce-plc-rr-rb211-trent-500-700-and-800-series-turbofan-engines)
- Oct 18, 2011: Notice of proposed rulemaking (NPRM)., FR document 2011-26821, comments due Dec 2, 2011 (https://www.federalregister.gov/documents/2011/10/18/2011-26821/airworthiness-directives-rolls-royce-plc-rr-turbofan-engines)
- Jan 20, 2012: Supplemental notice of proposed rulemaking (NPRM); reopening of comment period., FR document 2012-1128, comments due Mar 20, 2012 (https://www.federalregister.gov/documents/2012/01/20/2012-1128/airworthiness-directives-rolls-royce-plc-rr-turbofan-engines)
- Mar 21, 2013: Notice of proposed rulemaking (NPRM)., FR document 2013-06498, comments due May 20, 2013 (https://www.federalregister.gov/documents/2013/03/21/2013-06498/airworthiness-directives-rolls-royce-plc-turbofan-engines)
- Sep 11, 2014: Notice of proposed rulemaking (NPRM)., FR document 2014-21677, comments due Nov 10, 2014 (https://www.federalregister.gov/documents/2014/09/11/2014-21677/airworthiness-directives-rolls-royce-plc-turbofan-engines)

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