Type Record · As of May 3, 2026
ALEXANDER SCHLEICHER GMBH & CO ASK 21
Glider · NONE NONE
Registered
26
Year Range
1982–2018
NTSB Events
3
Airworthiness Directives
0
01 / Distribution
Where the fleet lives and was built
Counts of currently-registered ALEXANDER SCHLEICHER GMBH & CO ASK 21 aircraft by US state and decade of manufacture, sourced from the FAA Aircraft Registry.
By State (top 10)
- CA 15.4% 4
- VA 15.4% 4
- TX 15.4% 4
- DE 7.7% 2
- MA 7.7% 2
- IL 7.7% 2
- MD 7.7% 2
- FL 3.8% 1
- IN 3.8% 1
- CO 3.8% 1
+3 more states
By Decade of Manufacture
- 1980s 3.8% 1
- 1990s 3.8% 1
- 2000s 15.4% 4
- 2010s 50.0% 13
- Unknown 26.9% 7
02 / NTSB Records
Events involving ALEXANDER SCHLEICHER GMBH & CO ASK 21 aircraft
3 event(s) on file. Showing the most recent 3.
-
Sep 29, 2020
N721WCHinckley, Illinois
NTSB Docket → -
Mar 23, 1996
N221CWFAIRFIELD, New Jersey
NTSB Docket → -
Sep 7, 1975
N899MAPROSPECTVILLE, Pennsylvania
NTSB Docket →
03 / Airworthiness Directives
FAA directives applicable to ALEXANDER SCHLEICHER GMBH & CO ASK 21
No matching airworthiness directives are on file for this make and model in the Federal Register.
04 / Type Certificate Data Sheets
FAA TCDS for ALEXANDER SCHLEICHER GMBH & CO ASK 21
The TCDS is the legal certification document — weight limits, performance, equipment, AD compliance times, operating limitations. 1 match in the FAA catalog.
- G47EU Current Rev 2 · 07/03/2019
Alexander Schleicher GmbH & Co.
Models: ASK 21, ASK 21 B, ASK 21 Mi
05 / Special Airworthiness Information Bulletins
Advisories applicable to ALEXANDER SCHLEICHER GMBH & CO ASK 21
1 SAIB on file. SAIBs are FAA advisory notices — not mandatory like ADs, but worth reviewing for service bulletins and emerging issues.
-
11/12/1997
SAIB ACE-98-07
SAIB ACE-98-07 —
04 / Regulations watching this type
Advisory Circulars and Federal Register activity for ALEXANDER SCHLEICHER GMBH & CO ASK 21
Advisory Circulars
No ACs explicitly mention this type. Showing universal operating-rule ACs that apply to all aircraft.
Recent Federal Register activity
Latest rulemakings touching general operating rules (Part 91) and maintenance rules (Part 43).
- 2026-04-17 Settlement Policy for Small Unmanned Aircraft System (UAS) Cases FR ↗
- 2026-02-10 Normalizing Unmanned Aircraft Systems Beyond Visual Line of Sight Operations; Reopening of Comment Period; Denial of Extension FR ↗
- 2026-02-02 25-Hour Cockpit Voice Recorder (CVR) Requirement, New Aircraft Production FR ↗
- 2026-01-28 Normalizing Unmanned Aircraft Systems Beyond Visual Line of Sight Operations; Reopening of Comment Period FR ↗
- 2026-01-07 Requirements for Interference-Tolerant Radio Altimeter Systems FR ↗
05 / Aircraft of this type
All 26 registered N-numbers
Every tail currently on the FAA registry for this make/model. Click an N-number to query the FAA Aircraft Inquiry; rows flagged ● have NTSB events on file. Tails seeded with full TallyAero pages link directly.
| N-number | St | Year | NTSB | FAA |
|---|---|---|---|---|
| N202GG | CA | 2008 | · | Look up ↗ |
| N214BS | DE | 2018 | · | Look up ↗ |
| N215ES | FL | — | · | Look up ↗ |
| N221CW | IN | 2015 | ● | Look up ↗ |
| N3211W | VA | 2018 | · | Look up ↗ |
| N321K | VA | — | · | Look up ↗ |
| N421EF | CO | 2013 | · | Look up ↗ |
| N421GB | MA | 2016 | · | Look up ↗ |
| N468SA | CA | 2014 | · | Look up ↗ |
| N484AJ | DE | 2012 | · | Look up ↗ |
| N50NC | VA | — | · | Look up ↗ |
| N621CG | IL | 2009 | · | Look up ↗ |
| N621HH | NY | 2008 | · | Look up ↗ |
| N650SA | CA | 2011 | · | Look up ↗ |
| N67PJ | AZ | 2000 | · | Look up ↗ |
| N700SA | CA | 2011 | · | Look up ↗ |
| N721RC | MA | 2015 | · | Look up ↗ |
| N721WC | IL | 1997 | ● | Look up ↗ |
| N747SV | VA | — | · | Look up ↗ |
| N791SC | TX | 1982 | · | Look up ↗ |
| N792SC | TX | — | · | Look up ↗ |
| N899MA | MD | 2017 | ● | Look up ↗ |
| N899SA | MD | 2017 | · | Look up ↗ |
| N940PB | MO | 2018 | · | Look up ↗ |
| N966TS | TX | — | · | Look up ↗ |
| N977TS | TX | — | · | Look up ↗ |
Source — FAA Aircraft Registry · click "Look up" to query the live registry record (owner, address, last airworthiness)
05 / Sources & Methodology
Every count traces back to a primary US-government source
- FAA Aircraft Registry →
Refreshed Apr 27, 2026
Available
- NTSB CAROL →
Refreshed Apr 27, 2026
Available
- Federal Register (FAA Airworthiness Directives) →
Refreshed Apr 27, 2026
Available
We render counts and lists as the agency publishes them. Read the methodology →