# Airworthiness Directives; Turbomeca S.A. Turboshaft Engines
> **Rule** · Final rule. · Published 2016-06-21 · Effective 2016-07-26 · 81 FR 40158
## Document
- **Document number:** 2016-14406
- **Category:** airworthiness
- **Manufacturer:** Turbomeca S.A. Turboshaft
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 81 FR 40158
- **Publication date:** 2016-06-21
- **Effective date:** 2016-07-26
- **FAA docket:** Docket No. FAA-2010-0219
## Abstract

We are superseding airworthiness directive (AD) 2010-11-10 for 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 requires expanding the population and frequency of repetitive inspections. This AD was prompted by a report of a third stage turbine wheel crack detected during engine overhaul. We are issuing 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.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2016/06/21/2016-14406/airworthiness-directives-turbomeca-sa-turboshaft-engines)
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