# Proposed AD FAA-2009-0811: Rolls-Royce Corporation Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2010-19-01
- Products: Rolls-Royce
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 8, 2013, 78 FR 48339
- Comments due: October 7, 2013
- Became: [AD 2010-19-01](https://openairdocs.org/ad/2010-19-01)
- Docket: FAA-2009-0811 (https://www.regulations.gov/docket/FAA-2009-0811, where comments are filed)
- Project: 2008-NE-41-AD
- FR document: 2013-19162
- Official PDF: https://openairdocs.org/files/sha256/0c/3f/0c3f5f784adb86958df2cf617a5bb8996b71ad260bdca5981e90da30abe1be97 (from https://www.govinfo.gov/content/pkg/FR-2013-08-08/pdf/2013-19162.pdf)
- Federal Register: https://www.federalregister.gov/documents/2013/08/08/2013-19162/airworthiness-directives-rolls-royce-corporation-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/EF8FDC2CDEA1EC9C86257BC100478ACC.0001
- Page: https://openairdocs.org/proposed/FAA-2009-0811

## Summary

We propose to supersede an existing airworthiness directive (AD) that applies to certain Rolls-Royce Corporation (RRC) AE 3007A series turbofan engines. The existing AD currently requires removing certain high-pressure turbine (HPT) stage 2 wheels, or performing inspections on them, and reduces their approved life limits. This proposed AD would clarify the AE 3007A turbofan engine model applicability, would further reduce the approved life limits of affected HPT stage 2 wheels, and would eliminate the inspections required by the existing AD. We are proposing this AD to prevent uncontained failure of the HPT stage 2 wheel, damage to the engine, and damage to the airplane.

## Notices in this docket

- Feb 18, 2010: Notice of proposed rulemaking (NPRM). (first notice), FR document 2010-3145, comments due Mar 22, 2010 (https://www.federalregister.gov/documents/2010/02/18/2010-3145/airworthiness-directives-rolls-royce-corporation-rrc-ae-3007a-series-turbofan-engines)
- Aug 8, 2013: Notice of proposed rulemaking (NPRM)., FR document 2013-19162, comments due Oct 7, 2013 (https://www.federalregister.gov/documents/2013/08/08/2013-19162/airworthiness-directives-rolls-royce-corporation-turbofan-engines)

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