- Effective
- November 14, 1984
- Model
- ASK 21
- Data sheet
- TCDSG47EU
- Registered aircraft
- 69 matched by model
- Product
- Aircraft · Glider
- Amendment
- 39-4945
Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed May 30, 2024.
Copies of the files this page was built from, with their SHA-256. Retrieved October 18, 2026.
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On this page
The airworthiness directive
84-23-03 ALEXANDER SCHLEICHER: Amendment 39-4945. Applies to Model ASK-21 sailplanes, all serial numbers, certificated in any category.
Compliance is required within the next 25 hours time in service after the effective date of this AD, unless already accomplished.
To comply with the requirements of Federal Aviation Regulation 21.29(a)(3), accomplish the following:
1. Remove the one placard in the German language fitted in the front and rear cockpit, and replace with new placards in the English language, in accordance with Alexander Schleicher ASK-21 Technical Note No. 14, dated May 16, 1984.
2. Remove and replace the following manual pages in accordance with Alexander Schleicher ASK-21 Technical Note No. 14, dated May 16, 1984:
a. In the Flight Manual, remove pages 2 (December 20, 1983) and 21 (March 9, 1983), and replace with pages 2 (May 16, 1984) and 21 (May 16, 1984).
b. In the Instructions for Continued Airworthiness, remove pages 2 (December 20, 1983) and 59 (March 9, 1983), and replace with pages 2 (May 16, 1984) and 59 (May 16, 1984).
3. Paragraph 2 of this AD may be accomplished by the pilot with logbook entry.
Upon request, an equivalent means of compliance with the requirements of this AD may be approved by the Manager, Brussels Aircraft Certification Office, AEU-10O, Europe, Africa, and Middle East Office, FAA, c/o American Embassy, 1000 Brussels, Belgium, telephone 513.38.30 extension 2710.
The Alexander Schleicher ASK-21 Technical Note No. 14, dated May 16, 1984, identified and described in this directive is incorporated herein and made a part hereof pursuant to 5 U.S.C 552 (a)(1). All persons affected by this directive who have not already received these documents from the manufacturer may obtain copies upon request to Alexander Schleicher Segelflugzeubau, D-6416 Poppenhausen, Federal Republic of Germany. These documents may also be examined at the Office of the Regional Counsel, 12 New EnglandExecutive Park, Burlington, Massachusetts 01803.
This amendment becomes effective on November 14, 1984.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 69
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1982 | 2 |
|---|---|
| 1983 | 4 |
| 1984 | 8 |
| 1985 | 2 |
| 1986 | 2 |
| 1990 | 2 |
| 1991 | 1 |
| 1992 | 1 |
| 1997 | 1 |
| 1998 | 1 |
| 1999 | 3 |
| 2000 | 2 |
| 2001 | 1 |
| 2002 | 2 |
| 2005 | 2 |
| 2006 | 3 |
| 2008 | 2 |
| 2009 | 1 |
| 2011 | 2 |
| 2012 | 1 |
| 2013 | 1 |
| 2014 | 1 |
| 2015 | 2 |
| 2016 | 1 |
| 2017 | 2 |
| 2018 | 3 |
16 with no year recorded