# Airworthiness Directives; Schempp-Hirth Flugzeugbau GmbH Model Duo Discus T Gliders
> **Rule** · Final rule; request for comments. · Published 2006-12-14 · Effective 2007-01-03 · 71 FR 75106
## Document
- **Document number:** E6-21212
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 71 FR 75106
- **Publication date:** 2006-12-14
- **Effective date:** 2007-01-03
- **FAA docket:** FAA-2006-26437
## Abstract

We are adopting a new airworthiness directive (AD) for the products listed above. This AD results from mandatory continuing airworthiness information (MCAI) issued by the aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI describes the unsafe condition as the possible failure of the attachment of the propeller blades. This AD requires actions that are intended to address the unsafe condition described in the MCAI.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2006/12/14/E6-21212/airworthiness-directives-schempp-hirth-flugzeugbau-gmbh-model-duo-discus-t-gliders)
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