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Aircraft record

N721WC1997 Alexander Schleicher Gmbh & Co ASK 21

Registration validUnclaimedSource: FAA, updated Oct 20, 2026

Safety record in brief:1 NTSB accident (substantial damage, Sep 2020)2 ADs may apply

Registration
Valid
expires May 31, 2029
Based in
Hinckley, IL
owner city / state
Engine
NONE
None
Owners
1
since 2008
NTSB events
1
substantial, 2020
ADs may apply
2
confirm with A&P
Service reports
0
since 1995

Registration

FAA Aircraft Registry · Oct 20, 2026
Registered owner
Windy City Soaring Association
Owner type
Corporation
City, state
Hinckley, IL
Certificate issued
Jan 17, 2008
Expires
May 31, 2029
Airworthiness
Standard · Other
Airworthiness date
Apr 22, 2008

We never show street addresses, even though they appear in the public FAA file. Individual owners are shown by city and state only.

Airframe & engine

FAA Registry + type data

Airframe

Manufacturer
Alexander Schleicher Gmbh & Co
Model
ASK 21
Year
1997
Serial number
21650
Aircraft type
Glider
Category
Land
Certification
Not Type Certificated
Seats
2
Max takeoff weight
Up to 12,499 lb
Mode S code
A9A93A

Engine

Make and model
None None
Type
None

Total time and engine hours aren't public. They appear here once the owner adds logbooks.

Ownership history

Ownership history from FAA records
  1. 2008 – nowWindy City Soaring AssociationHinckley, IL · current

Individual owners are shown by city and state only.

Safety record

NTSB · Oct 15, 2026 · FAA ADs · Oct 20, 2026 · SDRs · Oct 16, 2026

NTSB events (1)

Accident · substantial damage

Sep 29, 2020 · Hinckley, IL

The pilot’s improper control input during a bounced landing that resulted in the glider impacting terrain.

Damage
Substantial
Injuries
None
Report
CEN20LA427

From NTSB records; matched by N-number.Read NTSB report (search CAROL for CEN20LA427)

Accident history for this model

ADs published since 1998 that may apply (2)

These match the airframe or engine model. Whether each one applies, and whether it's been complied with, depends on serial numbers, equipment and logbook entries. Applicability must be confirmed by a mechanic against the aircraft's records.

ADSubjectEffectiveApplies to
2017-02-11Flight ControlsMar 17, 2017Airframe (ASK 21)Only with: Modified with a rudder hand control system using ASK 21 Technical Note No. 25 (February 16, 1993) or Technical Note No. 30 (January 22, 2007).
95-11-15Alexander Schleicher GmbH & Co. Model ASK 21 GlidersJul 14, 1995Airframe (ASK 21)

AI-extracted — verify against original. Matched from each AD's applicability section; ADs replaced by a later AD are left out.

Service Difficulty Reports (0)

No Service Difficulty Reports found for this airframe since 1995.

Sources

  • FAA Aircraft RegistryRegistration, owner city and state, airframe, engineupdated Oct 20, 2026
  • NTSB accident and incident databaseAccidents and incidents since 1982updated Oct 15, 2026
  • FAA Airworthiness Directives (Federal Register)ADs published since 1998updated Oct 20, 2026
  • FAA Service Difficulty ReportsReports since 1995updated Oct 16, 2026

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