# Airworthiness Directives; General Electric Company CF6-80C2 Series Turbofan Engines
> **Rule** · Final rule. · Published 2004-04-01 · Effective 2004-05-06 · 69 FR 17033
## Document
- **Document number:** 04-7235
- **Category:** airworthiness
- **Manufacturer:** General Electric Company CF6-80C2 Series Turbofan
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 69 FR 17033
- **Publication date:** 2004-04-01
- **Effective date:** 2004-05-06
- **FAA docket:** Docket No. 2003-NE-46-AD
## Abstract

The FAA is adopting a new airworthiness directive (AD) for General Electric Company (GE) CF6-80C2 series turbofan engines. This AD requires replacing certain high pressure turbine (HPT) stage 1 disks at or before reaching a new reduced life cycle limit. This AD is prompted by an updated low-cycle-fatigue (LCF) analysis of the HPT stage 1 disk. We are issuing this AD to prevent LCF cracking and failure of the HPT stage 1 disk due to exceeding the life limit, which could result in an uncontained engine failure and damage to the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/04/01/04-7235/airworthiness-directives-general-electric-company-cf6-80c2-series-turbofan-engines)
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