# NTSB investigations: Schweizer SGS 2-33A, 1990

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 NYC90LA168](https://openairdocs.org/ntsb/NYC90LA168.md): Schweizer SGS-2-33A · Gt. Barrington, MA · Accident · Minor injuries · Limited investigation · Final report · Jul 21, 1990 · N2724H · Substantial damage
  > The pilot's failure to maintain adequate clearance from tree during the precautionary landing. Factor was a loss of thermal lift.
- [NTSB FTW90DPJ09](https://openairdocs.org/ntsb/FTW90DPJ09.md): Schweizer SGS 2-33A · Norman, OK · Accident · No injuries · Final report · Jul 8, 1990 · N65879 · Substantial damage
  > The pilot's misjudgement of proper glidepath.
- [NTSB DEN90LA086](https://openairdocs.org/ntsb/DEN90LA086.md): Schweizer SGS 2-33A · Morgan, UT · Accident · No injuries · Limited investigation · Final report · Apr 4, 1990 · N2048T · Substantial damage
  > Separation of the tow rope and the pilot's failure to establish an appropriate descent rate as he returned to land. Contributing to the accident were the tailwind and the unsuitable terrain for landing beyond the runway end.
- [NTSB NYC90LA082](https://openairdocs.org/ntsb/NYC90LA082.md): Schweizer S2-33A · Brookhaven, NY · Accident · Serious injuries · Limited investigation · Final report · Mar 25, 1990 · N2055T · Minor damage
  > Cause of the accident was a hard landing after the pilot stalled the glider while turning onto final approach.
- [NTSB NYC90LA046](https://openairdocs.org/ntsb/NYC90LA046.md): Schweizer SGS 2-33A · Kutztown, PA · Accident · Minor injuries · Limited investigation · Final report · Jan 8, 1990 · N2637H · Substantial damage
  > Improper decision of the glider pilot to exit the glider without positive assurance that the tow pilot had received his signal or that the glider was released from the tow plane. A related factor to the accident was: the lack of crew coordination between the…

## 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 year(c."eventDate") = 1990
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('8051606'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=8051606&year=1990

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