# Proposed AD 2002-NE-35-AD: General Electric Company CF6-50 Series Turbofan Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2003-09-06
- Products: General Electric
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 27, 2002, 67 FR 79007
- Comments due: February 25, 2003
- Became: [AD 2003-09-06](https://openairdocs.org/ad/2003-09-06)
- Docket: 2002-NE-35-AD
- FR document: 02-32659
- Official PDF: https://openairdocs.org/files/sha256/bc/08/bc08219648915183f839d43ef40ca9f6dd1d88bc5a43c2e4767ebb2284288007 (from https://www.govinfo.gov/content/pkg/FR-2002-12-27/pdf/02-32659.pdf)
- Federal Register: https://www.federalregister.gov/documents/2002/12/27/02-32659/airworthiness-directives-general-electric-company-cf6-50-series-turbofan-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/9545A6997FEDBA5386256C9C006C9C37.0001
- Page: https://openairdocs.org/proposed/2002-NE-35-AD

## Summary

The Federal Aviation Administration (FAA) proposes to adopt a new airworthiness directive (AD) that is applicable to General Electric Company (GE) CF6-50 series turbofan engines. This proposal would require removal from service of eight serial number (SN) low pressure turbine (LPT) stage 1 disks, part number (P/N) 9061M21P03, at the next engine shop visit. This proposal is prompted by a report of the potential for iron-rich inclusions introduced during manufacture in the affected disks. The actions specified by the proposed AD are intended to prevent LPT stage 1 disk cracking, due to iron-rich inclusions introduced during manufacture, leading to uncontained disk failure.

## Notices in this docket

- Dec 27, 2002: Notice of proposed rulemaking (NPRM). (first notice), FR document 02-32659, comments due Feb 25, 2003 (https://www.federalregister.gov/documents/2002/12/27/02-32659/airworthiness-directives-general-electric-company-cf6-50-series-turbofan-engines)

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