# Proposed AD 99-CE-90-AD: DG Flugzeugbau GmbH Model DG-800B Sailplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2000-20-10
- Action: Notice of proposed rulemaking (NPRM).
- Published: August 10, 2000, 65 FR 48931
- Comments due: September 11, 2000
- Became: [AD 2000-20-10](https://openairdocs.org/ad/2000-20-10)
- Docket: 99-CE-90-AD
- FR document: 00-20251
- Official PDF: https://openairdocs.org/files/sha256/b9/b0/b9b0ab4848eb0e20c997b0d8637969db579e29aad6193734f7a5a84d6c5b1e38 (from https://www.govinfo.gov/content/pkg/FR-2000-08-10/pdf/00-20251.pdf)
- Federal Register: https://www.federalregister.gov/documents/2000/08/10/00-20251/airworthiness-directives-dg-flugzeugbau-gmbh-model-dg-800b-sailplanes
- Page: https://openairdocs.org/proposed/99-CE-90-AD

## Summary

This document proposes to adopt a new airworthiness directive (AD) that would apply to certain DG Flugzeugbau (DG Flugzeugbau) GmbH Model DG 800B sailplanes. The proposed AD would require you to measure and correct improper propeller drive belt tension. The proposed AD is the result of mandatory continuing airworthiness information (MCAI) issued by the airworthiness authority for the Federal Republic of Germany. The actions specified in the proposed AD are intended to correct improper drive belt tension and consequent engine crankshaft or connecting rod bearing damage. Such damage could result in loss of propulsion during critical phases of flight.

## Notices in this docket

- Aug 10, 2000: Notice of proposed rulemaking (NPRM). (first notice), FR document 00-20251, comments due Sep 11, 2000 (https://www.federalregister.gov/documents/2000/08/10/00-20251/airworthiness-directives-dg-flugzeugbau-gmbh-model-dg-800b-sailplanes)

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