# Proposed AD FAA-2010-0219: Turbomeca S.A. Turboshaft Engines

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2010-11-10
- Products: Turbomeca
- Product type: Engine
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 11, 2016, 81 FR 12843
- Comments due: May 10, 2016
- Became: [AD 2010-11-10](https://openairdocs.org/ad/2010-11-10)
- Docket: FAA-2010-0219 (https://www.regulations.gov/docket/FAA-2010-0219, where comments are filed)
- Project: 2010-NE-14-AD
- FR document: 2016-05461
- Official PDF: https://openairdocs.org/files/sha256/56/37/56373a80de9fb0dee753e0aea4a5ce6ffb64600f720732c6582b3e2aebaa7732 (from https://www.govinfo.gov/content/pkg/FR-2016-03-11/pdf/2016-05461.pdf)
- Federal Register: https://www.federalregister.gov/documents/2016/03/11/2016-05461/airworthiness-directives-turbomeca-sa-turboshaft-engines
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/67565953E5AD71BE86257F730050D673.0001
- Page: https://openairdocs.org/proposed/FAA-2010-0219

## Summary

We propose to supersede airworthiness directive (AD) 2010-11- 10 that applies to all Turbomeca S.A., Astazou XIV B and XIV H turboshaft engines. AD 2010-11-10 requires inspection of certain third stage turbine wheels and removal of any damaged wheel. This AD was prompted by a report of a third stage turbine wheel crack detected during engine overhaul. This proposed AD would expand the population and frequency of repetitive inspections. We are proposing this AD to prevent uncontained failure of the third stage turbine wheel, which could result in damage to the engine and damage to the helicopter.

## Notices in this docket

- Mar 30, 2010: Notice of proposed rulemaking (NPRM). (first notice), FR document 2010-7055, comments due Apr 29, 2010 (https://www.federalregister.gov/documents/2010/03/30/2010-7055/airworthiness-directives-turbomeca-astazou-xiv-b-and-xiv-h-turboshaft-engines)
- Mar 11, 2016: Notice of proposed rulemaking (NPRM)., FR document 2016-05461, comments due May 10, 2016 (https://www.federalregister.gov/documents/2016/03/11/2016-05461/airworthiness-directives-turbomeca-sa-turboshaft-engines)

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