# Airworthiness Directives; Glaser-Dirks Flugzeugbau GmbH Model DG- 400 Gliders
> **Rule** · Final rule. · Published 1998-05-28 · Effective 1998-07-10 · 63 FR 29099
## Document
- **Document number:** 98-13818
- **Category:** airworthiness
- **Type:** Rule
- **Action:** Final rule.
- **Citation:** 63 FR 29099
- **Publication date:** 1998-05-28
- **Effective date:** 1998-07-10
- **FAA docket:** Docket No. 98-CE-11-AD
## Abstract

This amendment adopts a new airworthiness directive (AD) that applies to all Glaser-Dirks Flugzeugbau GmbH (Glaser-Dirks) Model DG- 400 gliders. This AD requires replacing the Bosch electrical system regulator, part number (P/N) 0212920001, with a type 4 E 26 regulator. 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 prevent failure of the electrical system regulator, which could result in smoke entering the cockpit with consequent passenger injury.

## Source
- [Federal Register document](https://www.federalregister.gov/documents/1998/05/28/98-13818/airworthiness-directives-glaser-dirks-flugzeugbau-gmbh-model-dg--400-gliders)
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