# Airworthiness Directives; CFM International CFM56-5, -5B, and -5C Series Turbofan Engines
> **Rule** · Final rule. · Published 2005-05-10 · Effective 2005-06-14 · 70 FR 24481
## Document
- **Document number:** 05-9275
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 70 FR 24481
- **Publication date:** 2005-05-10
- **Effective date:** 2005-06-14
- **FAA docket:** Docket No. FAA-2004-19928
## Abstract

The FAA is adopting a new airworthiness directive (AD) for CFM International CFM56-5, -5B, and -5C series turbofan engines. This AD requires removing certain part number (P/N) air turbine starters from service. This AD results from several reports of uncontained failures of air turbine starters where high-energy particles were not contained within the containment feature of the starter. We are issuing this AD to prevent uncontained failures of air turbine starters, which could result in damage to the airplane.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2005/05/10/05-9275/airworthiness-directives-cfm-international-cfm56-5--5b-and--5c-series-turbofan-engines)
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