# NTSB investigations: Schleicher ASW-20: Airframe/component/system failure/malfunction

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 LAX04LA203](https://openairdocs.org/ntsb/LAX04LA203.md): Schleicher ASW-20 · Reno, NV · Accident · 1 fatal · Limited investigation · Final report · May 8, 2004 · N126PS · Destroyed
  > the pilot's failure to maintain an adequate airspeed margin while performing a return to runway maneuver, which led to a stall and spin. Factors in the accident were: 1) the deteriorated condition of the glider towrope, which resulted in towrope failure…
- [NTSB CHI04CA090](https://openairdocs.org/ntsb/CHI04CA090.md): Schleicher ASW-20 · Yoder, KS · Accident · No injuries · Data collection · Final report · Mar 28, 2004 · N232EM · Substantial damage
  > The pilot's failure to secure the elevator Louis L'Hotellier connector with a safety pin or wire as directed in several airworthiness directives and his inadequate preflight inspection of the sailplane, both of which resulted in the in-flight loss of elevator…
- [NTSB CHI00LA188](https://openairdocs.org/ntsb/CHI00LA188.md): Schleicher ASW-20L · Gregory, MI · Accident · Serious injuries · Limited investigation · Final report · Jul 4, 2000 · N4804W · Substantial damage
  > the control stick movement being restricted by the pilot's seat-type parachute and the excessive descent rate and airspeed during landing. A factor to the accident was the pilot's lack of familiarity with the aircraft.
- [NTSB LAX92LA400](https://openairdocs.org/ntsb/LAX92LA400.md): Schleicher ASW-20 · Middletown, CA · Accident · 1 fatal · Limited investigation · Final report · Sep 26, 1992 · N789E · Destroyed
  > The pilot's failure to connect the elevator control during assembly and failure to perform an adequate aircraft preflight check. Contributing to the accident was the pilots distraction by performing other tasks during the assembly procedure.

## 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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('3801506')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 130))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=3801506&occurrence=130

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.