NTSB investigations: Schleicher ASK-21
13 cases on aircraft the registry lists as Schleicher ASK-21. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.
Cases per year
| 1987 | 2 |
|---|---|
| 1988 | 1 |
| 2001 | 1 |
| 2002 | 1 |
| 2003 | 1 |
| 2007 | 1 |
| 2008 | 2 |
| 2009 | 1 |
| 2014 | 1 |
| 2024 | 1 |
| 2026 | 1 |
Where
Open the mapLatest cases
Query with SQL
duckdb -csv -c "SELECT c.\"ntsbNumber\", c.\"eventDate\", c.\"eventType\", c.\"eventCity\", c.\"eventStateOrRegion\", a.n_number, a.\"aircraftMake\", a.\"aircraftModel\", c.\"highestInjuryLevel\", c.\"totalFatal\", c.\"completionStatus\", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c.\"mKey\" AND a.position = 1
WHERE c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('38015GY'))
ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('38015GY'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB WPR26LA299Accident · No injuriesClass 4 · LimitedInvestigation openJonker Sailplanes JS3 · Tehachapi, CANTSB ERA25LA009Accident · Minor injuriesClass 4 · LimitedFinal reportSchleicher ASK-21 · Front Royal, VAThe pilot’s improper landing flare and subsequent improper recovery from a hard, bounced landing.NTSB ERA14CA453Accident · Minor injuriesData collectionFinal reportSchleicher ASK 21 · Wurtsboro, NYA loss of lift during the landing approach, which resulted in impact with terrain.NTSB WPR09CA479Accident · Minor injuriesData collectionFinal reportSchleicher ASK-21 · Jean, NVThe pilot's failure to maintain control of the glider during the initial climb due to an inadvertent encounter with wind.NTSB MIA08CA136Accident · No injuriesData collectionFinal reportSchleicher ASK-21 · Elmira, NYThe glider pilot's misjudged distance/altitude while soaring.NTSB SEA08CA129Accident · No injuriesData collectionFinal reportSchleicher ASK-21 · Tehachapi, CAThe pilot's inadequate preflight procedures and failure to check the spoiler control position, which resulted in the inadvertent deployment of the spoilers during takeoff. A contributing factor was the pilot's misinterpretation of the tow pilot's instructions.NTSB ANC07LA046Accident · No injuriesLimited investigationFinal reportSchleicher ASK-21 · Clear, 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.NTSB ANC04FA016Accident · 4 fatalField investigationFinal reportPiper J3C-65 · Peoria, AZThe inadequate visual lookout by the pilots of both aircraft, which resulted in their failure to see-and-avoid each other's aircraft and a subsequent midair collision. A factor associated with the accident was the airplane pilot's failure to determine that…NTSB IAD02LA059Accident · Minor injuriesLimited investigationFinal reportSchleicher ASK21 · Woodstock, VAThe pilot's failure to recognize the loss of orographic lift conditions. A factor was the loss of orographic lift.NTSB ATL01LA098Accident · No injuriesLimited investigationFinal reportSchleicher ASK-21 · Eagleville, TNThe loss of thermals during the glider flight that resulted in the collision with high vegetation while maneuvering for an emergency landing. A factor was high vegetation.NTSB LAX89LA038Accident · No injuriesLimited investigationFinal reportSchleicher ASK-21 · Vacaville, CADuring final approach, the glider collided with a fence. A witness stated that, 'the pilot simply let the glider get too low and too slow and hit a fence.' There were no mechanical problems reported prior to the accident. The pilot did not file an acdt report.NTSB ATL87DLT01Accident · No injuriesFinal reportSchleicher ASK-21 · Eagleville, TNDuring a landing attempt, N174KS collided with a treeline on final approach to the airport. The instructor reported that the flight was normal until the student encountered a downdraft on final approach. The instructor took control of the controls, but was…NTSB CHI87DEE06Accident · No injuriesFinal reportSchleicher ASK-21 · Plainfield, ILThe glider plt rprtd that drg takeoff, the tow plt released the tow rope at aprx 15' AGL. Rprtdly, he released the tow rope due to a perceived lack of takeoff & climb performance. After being released, the glider plt made a right turn to avoid unacceptable…