# Airworthiness Directives; General Electric Aircraft Engines CF700 Series Turbofan Engines
> **Rule** · Final rule. · Published 1997-06-27 · Effective 1997-08-26 · 62 FR 34621
## Document
- **Document number:** 97-16695
- **Category:** airworthiness
- **Manufacturer:** General Electric
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 62 FR 34621
- **Publication date:** 1997-06-27
- **Effective date:** 1997-08-26
- **FAA docket:** Docket No. 96-ANE-38
## Abstract

This amendment adopts a new airworthiness directive (AD), applicable to General Electric Aircraft Engines CF700 series turbofan engines, that requires replacement of existing fan guards with new, improved fan guards. This amendment is prompted by a report of uncontained fan blades which separated from the engine during an overspeed. The actions specified by this AD are intended to prevent an overspeed of the aft fan disk from resulting in an uncontained engine failure and damage to the aircraft.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1997/06/27/97-16695/airworthiness-directives-general-electric-aircraft-engines-cf700-series-turbofan-engines)
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