# Proposed AD FAA-2008-0230: Rolls-Royce Corporation AE 3007A1E and AE 1107C Turbofan/Turboshaft Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2009-04-03
- Products: Rolls-Royce
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: June 11, 2008, 73 FR 33025
- Comments due: August 11, 2008
- Became: [AD 2009-04-03](https://openairdocs.org/ad/2009-04-03)
- Docket: FAA-2008-0230 (https://www.regulations.gov/docket/FAA-2008-0230, where comments are filed)
- Project: 2007-NE-24-AD
- FR document: E8-13056
- Official PDF: https://openairdocs.org/files/sha256/b8/94/b894db45dea07dfbc6fef88912defe112ac7da1c0db29aca67c6e86ae74dfd97 (from https://www.govinfo.gov/content/pkg/FR-2008-06-11/pdf/E8-13056.pdf)
- Federal Register: https://www.federalregister.gov/documents/2008/06/11/E8-13056/airworthiness-directives-rolls-royce-corporation-ae-3007a1e-and-ae-1107c-turbofanturboshaft-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/FD53F529CA47939F862574650056E115.0001
- Page: https://openairdocs.org/proposed/FAA-2008-0230

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for Rolls-Royce Corporation (RRC) AE 3007A1E and AE 1107C turbofan/ turboshaft engines. This proposed AD would require removal from service of certain 2nd stage, 3rd stage, and 4th stage compressor wheels, compressor cone shaft assemblies, and 1st to 2nd-stage turbine spacers, at new, reduced, published life limits. This proposed AD results from RRC applying an updated lifing methodology to the affected parts. We are proposing this AD to prevent low-cycle-fatigue (LCF) failure of the parts listed in Table 1 of this proposed AD, which could result in an uncontained engine failure and damage to the aircraft.

## Notices in this docket

- Jun 11, 2008: Notice of proposed rulemaking (NPRM). (first notice), FR document E8-13056, comments due Aug 11, 2008 (https://www.federalregister.gov/documents/2008/06/11/E8-13056/airworthiness-directives-rolls-royce-corporation-ae-3007a1e-and-ae-1107c-turbofanturboshaft-engines)

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