# Proposed AD 98-CE-14-AD: Glaser-Dirks Flugzeugbau GmbH Model DG- 400 Gliders

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 98-11-18
- Action: Notice of proposed rulemaking (NPRM).
- Published: March 18, 1998, 63 FR 13151
- Comments due: April 17, 1998
- Became: [AD 98-11-18](https://openairdocs.org/ad/98-11-18)
- Docket: 98-CE-14-AD
- FR document: 98-6946
- Official PDF: https://openairdocs.org/files/sha256/bf/ad/bfada03a97f372da695443909531f0a6de1aa01b05e140f9f6d61879dc59b8b3 (from https://www.govinfo.gov/content/pkg/FR-1998-03-18/pdf/98-6946.pdf)
- Federal Register: https://www.federalregister.gov/documents/1998/03/18/98-6946/airworthiness-directives-glaser-dirks-flugzeugbau-gmbh-model-dg--400-gliders
- Page: https://openairdocs.org/proposed/98-CE-14-AD

## Summary

This document proposes to adopt a new airworthiness directive (AD) that would apply to Glaser-Dirks Flugzeugbau GmbH (Glaser-Dirks) Model DG-400 gliders. The proposed AD would require replacing the upper rubber shock mounts with mounts made of stainless steel. The proposed AD would also require inspecting the rear plate of the propeller mount for cracks and proper mounting, and replacing or modifying as necessary. The proposed AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for Germany. The actions specified by the proposed AD are intended to prevent failure of the propeller suspension system caused by cracks in the propeller mounts, which could result in loss of the propeller with consequent reduced glider controllability.

## Notices in this docket

- Mar 18, 1998: Notice of proposed rulemaking (NPRM). (first notice), FR document 98-6946, comments due Apr 17, 1998 (https://www.federalregister.gov/documents/1998/03/18/98-6946/airworthiness-directives-glaser-dirks-flugzeugbau-gmbh-model-dg--400-gliders)

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