# Proposed AD 99-CE-70-AD: Alexander Schleicher GmbH & Co. Model ASW-27 Sailplanes

- Type: Proposed airworthiness directive (not in force)
- Status: Became AD 2000-04-26
- Action: Notice of proposed rulemaking (NPRM).
- Published: December 28, 1999, 64 FR 72584
- Comments due: January 31, 2000
- Became: [AD 2000-04-26](https://openairdocs.org/ad/2000-04-26)
- Docket: 99-CE-70-AD
- FR document: 99-33571
- Official PDF: https://openairdocs.org/files/sha256/e6/d6/e6d6721acbea83adfe0edf4053a3ed7d92fa15c5fe2f397e923681f9c0912ed3 (from https://www.govinfo.gov/content/pkg/FR-1999-12-28/pdf/99-33571.pdf)
- Federal Register: https://www.federalregister.gov/documents/1999/12/28/99-33571/airworthiness-directives-alexander-schleicher-gmbh-and-co-model-asw-27-sailplanes
- Page: https://openairdocs.org/proposed/99-CE-70-AD

## Summary

This document proposes to adopt a new airworthiness directive (AD) that would apply to certain Alexander Schleicher GmbH & Co. (Alexander Schleicher) Model ASW-27 sailplanes. The proposed AD would require inspecting the elevator control circuit clearance inside the fuselage tail boom to the fin intersection to assure a clearance of at least 2.5 millimeters (mm) (\1/10\-inch wide), and adjusting any clearance that does not meet the criteria. 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 detect interference in the elevator control circuit, which, if not corrected, could result in the elevator control jamming with possible loss of control of the sailplane.

## Notices in this docket

- Dec 28, 1999: Notice of proposed rulemaking (NPRM). (first notice), FR document 99-33571, comments due Jan 31, 2000 (https://www.federalregister.gov/documents/1999/12/28/99-33571/airworthiness-directives-alexander-schleicher-gmbh-and-co-model-asw-27-sailplanes)

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