# Airworthiness Directives; General Electric Company CF6-45, -50, -80A, -80C2, and -80E1 Turbofan Engines
> **Rule** · Final rule; request for comments. · Published 2000-08-21 · Effective 2000-09-05 · 65 FR 50623
## Document
- **Document number:** 00-20773
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 65 FR 50623
- **Publication date:** 2000-08-21
- **Effective date:** 2000-09-05
- **FAA docket:** Docket No. 2000-NE-31-AD
## Abstract

This amendment adopts a new airworthiness directive (AD) that is applicable to General Electric Company (GE) CF6-45, -50, -80A, - 80C2, and -80E1 turbofan engines with certain high pressure compressor rotor (HPCR) stage 3-9 spools installed. This action requires initial ultrasonic and eddy current inspections of certain HPCR stage 3-9 spools for cracks. This amendment is prompted by an uncontained failure of an HPCR 3-9 spool. The actions specified in this AD are intended to detect cracks which can cause separation of the HPCR stage 3-9 spool and result in an uncontained engine failure.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2000/08/21/00-20773/airworthiness-directives-general-electric-company-cf6-45--50--80a--80c2-and--80e1-turbofan-engines)
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