# Proposed AD FAA-2013-0575: Turbomeca S.A. Turboshaft Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2013-26-09
- Products: Turbomeca
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 6, 2013, 78 FR 47581
- Comments due: October 7, 2013
- Became: [AD 2013-26-09](https://openairdocs.org/ad/2013-26-09)
- Docket: FAA-2013-0575 (https://www.regulations.gov/docket/FAA-2013-0575, where comments are filed)
- Project: 2013-NE-21-AD
- FR document: 2013-18908
- Official PDF: https://openairdocs.org/files/sha256/50/3c/503cbc5b8110fd24e356f7126184cdd6e43c3aa7f0927a347df80f8eb18912d8 (from https://www.govinfo.gov/content/pkg/FR-2013-08-06/pdf/2013-18908.pdf)
- Federal Register: https://www.federalregister.gov/documents/2013/08/06/2013-18908/airworthiness-directives-turbomeca-sa-turboshaft-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/6C2C19BBB96626D486257BBF0052B3FC.0001
- Page: https://openairdocs.org/proposed/FAA-2013-0575

## Summary

We propose to adopt a new airworthiness directive (AD) for all Turbomeca S.A. ASTAZOU XIV B and XIV H engines. This proposed AD was prompted by reports of cracks on the 2nd-stage turbine disc. This proposed AD would require replacement of the 2nd-stage turbine disc. We are proposing this AD to prevent disc cracking, uncontained 2nd-stage turbine blade release, damage to the engine, and damage to the helicopter.

## Notices in this docket

- Aug 6, 2013: Notice of proposed rulemaking (NPRM). (first notice), FR document 2013-18908, comments due Oct 7, 2013 (https://www.federalregister.gov/documents/2013/08/06/2013-18908/airworthiness-directives-turbomeca-sa-turboshaft-engines)

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