# Special Conditions: Diamond Aircraft Industries, DA-42; Diesel Cycle Engine Using Turbine (Jet) Fuel
> **Rule** · Final special conditions; request for comments. · Published 2005-06-28 · Effective 2005-06-22 · 70 FR 37016
## Document
- **Document number:** 05-12720
- **Category:** other
- **Type:** Rule
- **Action:** Final special conditions; request for comments.
- **Citation:** 70 FR 37016
- **Publication date:** 2005-06-28
- **Effective date:** 2005-06-22
- **FAA docket:** Docket No. CE227
## Abstract

These special conditions are issued for the Diamond Aircraft Industries (DAI) DA-42 airplane. This airplane will have a novel or unusual design feature(s) associated with the installation of a diesel cycle engine utilizing turbine (jet) fuel. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for installation of this new technology engine. These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2005/06/28/05-12720/special-conditions-diamond-aircraft-industries-da-42-diesel-cycle-engine-using-turbine-jet-fuel)
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