# Airworthiness Directives; Schempp-Hirth Flugzeugbau GmbH Model Duo-Discus Gliders
> **Rule** · Final rule; request for comments. · Published 2004-12-09 · Effective 2004-12-30 · 69 FR 71353
## Document
- **Document number:** 04-26640
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule; request for comments.
- **Citation:** 69 FR 71353
- **Publication date:** 2004-12-09
- **Effective date:** 2004-12-30
- **FAA docket:** Docket No. FAA-2004-19556
## Abstract

The FAA is adopting a new airworthiness directive (AD) for certain Schempp-Hirth (SCHEMPP-HIRTH) Flugzeugbau GmbH Model Duo-Discus gliders. This AD requires you to do a one-time inspection of the bonding of the spar cap and spar web and repair any defective bonding of the spar cap and spar web. This AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. The actions specified by this AD are intended to detect and correct failure of the bonding of the spar cap and spar web, which, if not detected and corrected, could result in an in-flight wing failure.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/2004/12/09/04-26640/airworthiness-directives-schempp-hirth-flugzeugbau-gmbh-model-duo-discus-gliders)
---
*AI Analytics · CC0 1.0*