# Airworthiness Directives; General Electric Company (GE) CF6-45 and CF6-50 Series Turbofan Engines
> **Rule** · Final rule. · Published 2002-02-08 · Effective 2002-03-15 · 67 FR 5937
## Document
- **Document number:** 02-3064
- **Category:** airworthiness
- **Manufacturer:** General Electric Company (GE) CF6-45 and CF6-50 Series Turbofan
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 67 FR 5937
- **Publication date:** 2002-02-08
- **Effective date:** 2002-03-15
- **FAA docket:** Docket No. 2001-NE-33-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), that is applicable to GE CF6-45 and CF6-50 series turbofan engines. This AD requires a reduction of the cyclic life limit for certain low pressure turbine rotor (LPTR) stage 2 disks, and requires removing certain LPTR stage 2 disks from service before exceeding the new, lower cyclic life limit. In addition, this amendment requires removing from service certain LPTR stage 2 disks that currently exceed, or will exceed, the new, lower cyclic life limit according to the compliance schedule described in this action. This amendment is prompted by a report of a cracked LPTR stage 2 disk found initially by flourescent penetrant inspection and later confirmed by a visual inspection. The actions specified by this AD are intended to prevent an uncontained engine failure and damage to the airplane, resulting from cracks in the LPTR stage 2 disk.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2002/02/08/02-3064/airworthiness-directives-general-electric-company-ge-cf6-45-and-cf6-50-series-turbofan-engines)
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