N621CP: 2000 Schleicher ASK-21, Maxwell Afb, AL

Registered owner: Civil Air Patrol Inc
Location: Maxwell Afb, AL
Owner type: Corporation
Serial number: 21708
Year built: 2000
Type: Glider
Engine: None
Airworthiness: Standard, glider
Airworthiness date: August 24, 2000
Certificate issued: May 18, 2000
Expires: July 31, 2027
Mode S code: A81A34

Schleicher ASK-21Airframe model · 2 seats · 43 registered TCDS G47EUAirframe · Schleicher ASK-21 Engine modelNONE

From the FAA registry file of October 24, 2026.

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Airworthiness directives that may apply · 13

Matched by this aircraft’s airframe and engine models. Each AD’s applicability may narrow it by serial number, part number or equipment.

1984In forceSuperseded2026

ADs by the year they took effect: 13 ADs
1984	1
1985	1
1987	1
1997	1
1998	6
1999	1
2014	1
2017	1

Airframe · Schleicher ASK-21

AD 2017-02-11Flight ControlsEffective Mar 17, 2017 AD 2014-06-07Placards and MarkingsEffective May 8, 2014 AD 95-11-15 R1Parallel RockerEffective Jul 25, 1999 AD 98-12-03Rudder Panel, Airbrake Bellcrank, Rear Canopy HingeEffective Jul 14, 1998 AD 98-10-07SFM - Weight and BalanceEffective Jun 26, 1998 AD 98-09-13S-Shaped Rudder Pedal Tube InspectionEffective Jun 14, 1998 AD 98-08-29SFM - Stall and Spin Recovery InformationEffective May 18, 1998 AD 98-06-38Elevator PushrodEffective Apr 28, 1998 AD 98-06-37Tow Release Cable AssemblyEffective Apr 28, 1998 AD 97-08-06 R1Quick ConnectorsEffective Aug 1, 1997 · Supersedes AD 97-08-06 AD 87-10-07Rudder PedalEffective May 13, 1987 AD 85-06-07Main Wheel BoxEffective Jul 25, 1985 AD 84-23-03Placard And Afm ChangesEffective Nov 14, 1984

Information bulletins that may apply

Advisory, not mandatory.

No bulletins matched this aircraft’s models

NTSB investigations · 1

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

NTSB ANC07LA046Accident · No injuriesLimited investigationFinal reportClear, AKThe dual student's misjudged distance/altitude during the final approach to land, and the flight instructor's inadequate supervision of the student, which resulted in an undershoot, and substantial damage.Jun 9, 2007 · Substantial damage

FAA incident reports · 2

FAA accident and incident reports matched to this aircraft by N-number and event date, checked against the reported make and model.

Incident 20170423015009ITakeoff: Climb Out · Birchwood, AKConducting glider training (early returns), landed in clear grassy area after intentionally disengaging the tow rope too soonApr 23, 2017 · Minor damage Accident 20070609010899ALevel Off Touchdown · Clear, AK(-23) This accident occurred during an airforce funded cadet training exercise. By definition an airforce mission (#A-20). The glider landed short of rwy 01 on a training flight, rolled into and on the pavement lip causing damage to the nose gear and damaging…Jun 9, 2007 · Substantial damage

Service difficulty reports

No reports matched to N621CPGeneral aviation reporting is voluntary. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Reports on Schleicher ASK-21 aircraft

STCs that may be installed

No STCs matched this aircraft’s modelsSTCs are matched through the model’s type certificate data sheet, and this registry model isn’t matched to one.

N621CP