# NTSB investigations: Schleicher ASK-21, CA

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB WPR26LA299](https://openairdocs.org/ntsb/WPR26LA299.md): Jonker Sailplanes JS3 · Tehachapi, CA · Accident · No injuries · Class 4 · Limited · Investigation open · Aug 8, 2026 · N9172T · 2 aircraft · Substantial damage
- [NTSB SEA08CA129](https://openairdocs.org/ntsb/SEA08CA129.md): Schleicher ASK-21 · Tehachapi, CA · Accident · No injuries · Data collection · Final report · May 10, 2008 · N361KS · Substantial damage
  > The 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 LAX89LA038](https://openairdocs.org/ntsb/LAX89LA038.md): Schleicher ASK-21 · Vacaville, CA · Accident · No injuries · Limited investigation · Final report · Nov 6, 1988 · N129KS · Substantial damage
  > During 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.

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
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."eventStateOrRegion" = 'CA' AND c."eventCountry" = 'USA'
  AND 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
```

This list as a web page: https://openairdocs.org/ntsb?model=38015GY&state=CA

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