# Airworthiness Directives; General Electric Company CF6-50 and - 80C2 Series Turbofan Engines
> **Rule** · Final rule; request for comments. · Published 1997-10-31 · Effective 1997-11-17 · 62 FR 58892
## Document
- **Document number:** 97-28742
- **Category:** airworthiness
- **Manufacturer:** General Electric Company CF6-50 and - 80C2 Series Turbofan
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 62 FR 58892
- **Publication date:** 1997-10-31
- **Effective date:** 1997-11-17
- **FAA docket:** Docket No. 97-ANE-52-AD
## Abstract

This amendment adopts a new airworthiness directive (AD) that is applicable to General Electric Company (GE) CF6-50 and -80C2 series turbofan engines. This action requires removal from service of defective high pressure compressor rotor (HPCR) stage 3-9 spools, and replacement with serviceable parts. This amendment is prompted by a report of an uncontained failure of an HPCR stage 3-9 spool installed on a GE model CF6-80C2 turbofan engine. The actions specified in this AD are intended to prevent failure of the HPCR stage 3-9 spool, which can result in an uncontained engine failure and damage to the aircraft.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1997/10/31/97-28742/airworthiness-directives-general-electric-company-cf6-50-and---80c2-series-turbofan-engines)
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