# Airworthiness Directives; Technify Motors GmbH Reciprocating Engines
> **Rule** · Final rule. · Published 2017-09-26 · Effective 2017-10-31 · 82 FR 44711
## Document
- **Document number:** 2017-20419
- **Category:** airworthiness
- **Manufacturer:** Technify Motors GmbH Reciprocating
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 82 FR 44711
- **Publication date:** 2017-09-26
- **Effective date:** 2017-10-31
- **FAA docket:** Docket No. FAA-2017-0241
## Abstract

We are adopting a new airworthiness directive (AD) for certain Technify Motors GmbH TAE 125-02 reciprocating engines. This AD requires replacement of the clutch with a dual mass flywheel. This AD was prompted by a loss of engine power in flight caused by oil leaking from the gearbox radial shaft sealing ring that contaminated the clutch. We are issuing this AD to correct the unsafe condition on these products.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2017/09/26/2017-20419/airworthiness-directives-technify-motors-gmbh-reciprocating-engines)
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