# Airworthiness Directives; CFM International, S.A. CFM56-2-C, -3 Series, and -5 Series Turbofan Engines
> **Rule** · Final rule. · Published 2004-05-20 · Effective 2004-06-24 · 69 FR 29055
## Document
- **Document number:** 04-11405
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 69 FR 29055
- **Publication date:** 2004-05-20
- **Effective date:** 2004-06-24
- **FAA docket:** Docket No. 2002-NE-26-AD
## Abstract

This amendment adopts a new airworthiness directive (AD), that applies to CFM International, S.A., CFM56-2-C, -3 series, and -5 series turbofan engines. This amendment requires removing from service main fuel pumps with bronze gear-stage bearings and installing main fuel pumps with bi-metal, aluminum/bronze bearings. This amendment results from several reports of main fuel pump bronze bearing failures. We are issuing this AD to prevent main fuel pump bearing failures resulting in fuel nozzle clogging, low pressure turbine (LPT) case burn-through, and damage to the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/05/20/04-11405/airworthiness-directives-cfm-international-sa-cfm56-2-c--3-series-and--5-series-turbofan-engines)
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