# Proposed AD 2000-NE-61-AD: GE Aircraft Engines CT7 Series Turboprop Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2002-01-03
- Products: GE Aircraft Engines
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: May 2, 2001, 66 FR 21898
- Comments due: July 2, 2001
- Became: [AD 2002-01-03](https://openairdocs.org/ad/2002-01-03)
- Docket: 2000-NE-61-AD
- FR document: 01-10889
- Official PDF: https://openairdocs.org/files/sha256/a4/e5/a4e5151b55d5a10c6bf8b477a1fc4c069d69cd1eb06e04018d19a3cc53ad7fef (from https://www.govinfo.gov/content/pkg/FR-2001-05-02/pdf/01-10889.pdf)
- Federal Register: https://www.federalregister.gov/documents/2001/05/02/01-10889/airworthiness-directives-ge-aircraft-engines-ct7-series-turboprop-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/F4E45825E8AAFDF486256A5C00546DFF.0001
- Page: https://openairdocs.org/proposed/2000-NE-61-AD

## Summary

The Federal Aviation Administration (FAA) proposes to adopt a new airworthiness directive (AD) that is applicable to GE Aircraft Engines (GE) CT7 series turboprop engines. This proposal would require removal of stage 2 turbine aft cooling plates of a certain part number (P/N) and installation of cooling plates of a new design. This proposal is prompted by a report of a stage 2 turbine aft cooling plate cracking, resulting in an uncontained engine failure. The actions specified by the proposed AD are intended to prevent stage 2 turbine aft cooling plate cracking, which could result in uncontained engine failure, and damage to the airplane.

## Notices in this docket

- May 2, 2001: Notice of proposed rulemaking (NPRM). (first notice), FR document 01-10889, comments due Jul 2, 2001 (https://www.federalregister.gov/documents/2001/05/02/01-10889/airworthiness-directives-ge-aircraft-engines-ct7-series-turboprop-engines)

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