# Proposed AD FAA-2009-0502: General Electric Company (GE) CJ610 Series Turbojet Engines and CF700 Series Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2010-09-08
- Products: General Electric
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: September 9, 2009, 74 FR 46395
- Comments due: November 9, 2009
- Became: [AD 2010-09-08](https://openairdocs.org/ad/2010-09-08)
- Docket: FAA-2009-0502 (https://www.regulations.gov/docket/FAA-2009-0502, where comments are filed)
- Project: 2009-NE-02-AD
- FR document: E9-21629
- Official PDF: https://openairdocs.org/files/sha256/65/50/6550fecc4b6eed447e4d43e390d348231ffaf95f037c28bd464b53b687a60bb5 (from https://www.govinfo.gov/content/pkg/FR-2009-09-09/pdf/E9-21629.pdf)
- Federal Register: https://www.federalregister.gov/documents/2009/09/09/E9-21629/airworthiness-directives-general-electric-company-ge-cj610-series-turbojet-engines-and-cf700-series
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/D667D90772A9D0668625762D00491DA0.0001
- Page: https://openairdocs.org/proposed/FAA-2009-0502

## Summary

The FAA proposes to adopt a new airworthiness directive (AD) for GE CJ610 series turbojet engines and CF700 turbofan engines with AFT Technologies combustion liners, part number (P/N) AFT-5016T30G02. This proposed AD would require removing from service, AFT Technologies combustion liners, P/N AFT-5016T30G02. This proposed AD results from a report of an AFT Technologies combustion liner that released a large section of the inner combustion liner and reports of six combustion liners with premature cracks. We are proposing this AD to prevent premature cracks in the combustion liner, which could release pieces of the inner combustion liner. A release of pieces of the inner combustion liner could cause an uncontained failure of the engine turbine and damage to the airplane.

## Notices in this docket

- Sep 9, 2009: Notice of proposed rulemaking (NPRM). (first notice), FR document E9-21629, comments due Nov 9, 2009 (https://www.federalregister.gov/documents/2009/09/09/E9-21629/airworthiness-directives-general-electric-company-ge-cj610-series-turbojet-engines-and-cf700-series)

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