# Proposed AD FAA-2006-26091: Turbomeca Arriel 1 Series Turboshaft Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2007-02-17
- Products: Turbomeca
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: November 29, 2006, 71 FR 69083
- Comments due: December 29, 2006
- Became: [AD 2007-02-17](https://openairdocs.org/ad/2007-02-17)
- Docket: FAA-2006-26091 (https://www.regulations.gov/docket/FAA-2006-26091, where comments are filed)
- Project: 2006-NE-28-AD
- FR document: E6-20229
- Official PDF: https://openairdocs.org/files/sha256/a4/c8/a4c837db34f8d2502c94da9342938943c7b2f077e1ade8ab81a5ca7e885b0f72 (from https://www.govinfo.gov/content/pkg/FR-2006-11-29/pdf/E6-20229.pdf)
- Federal Register: https://www.federalregister.gov/documents/2006/11/29/E6-20229/airworthiness-directives-turbomeca-arriel-1-series-turboshaft-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/942398CED494D4BF862572350060AD6C.0001
- Page: https://openairdocs.org/proposed/FAA-2006-26091

## Summary

We propose to adopt a new airworthiness directive (AD) for the products listed above. This proposed AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as:

In operation, fuel leaks at the level of start electro valve fuel coupling were observed. A lack of power or an uncommanded in- flight shutdown may result from these fuel leaks.

The condition described in the MCAI may result in a forced autorotation landing, the inability to continue safe flight or a fire. The proposed AD would require actions that are intended to address the unsafe condition described in the MCAI.

## Notices in this docket

- Nov 29, 2006: Notice of proposed rulemaking (NPRM). (first notice), FR document E6-20229, comments due Dec 29, 2006 (https://www.federalregister.gov/documents/2006/11/29/E6-20229/airworthiness-directives-turbomeca-arriel-1-series-turboshaft-engines)

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