# NTSB investigations: Schweizer SGS 2-33A: Collision with terr/obj (non-CFIT)

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 CEN24LA133](https://openairdocs.org/ntsb/CEN24LA133.md): Schweizer SGS 2-33A · Falcon, CO · Accident · Minor injuries · Class 4 · Limited · Final report · Mar 12, 2024 · N2905H · Substantial damage
  > The flight instructor’s failure to maintain control during takeoff which resulted in an aerodynamic stall and an impact with terrain.
- [NTSB ERA22LA407](https://openairdocs.org/ntsb/ERA22LA407.md): Schweizer SGS 2-33A · Mount Bethel, PA · Accident · Minor injuries · Class 4 · Limited · Final report · Sep 3, 2022 · N17867 · Substantial damage
  > The glider’s encounter with atmospheric conditions, where the lift was not sufficient to maintain flight resulting in an off-airport landing and collision with powerlines.
- [NTSB ERA22LA196](https://openairdocs.org/ntsb/ERA22LA196.md): Schweizer SGS 2-33A · Zebulon, NC · Accident · Minor injuries · Class 4 · Limited · Final report · Apr 16, 2022 · N7784S · Substantial damage
  > The flight instructor’s failure to maintain directional control with a quartering tailwind.
- [NTSB ERA18LA211](https://openairdocs.org/ntsb/ERA18LA211.md): Schweizer SGS233 · Churchville, MD · Accident · No injuries · Limited investigation · Final report · Aug 5, 2018 · N2832H · Substantial damage
  > The pilots' decision to take off from a wet, upsloping turf runway with a quartering tailwind and elevated density altitude conditions, which degraded takeoff and climb performance and resulted in the glider flight instructor's decision to discontinue the…
- [NTSB GAA17CA298](https://openairdocs.org/ntsb/GAA17CA298.md): Schweizer SGS233 · Springfield, VT · Accident · No injuries · Data collection · Final report · May 20, 2017 · N1242S · Substantial damage
  > The student pilot’s failure to maintain an adequate glidepath and the flight instructor’s delayed remedial action, which resulted in the glider landing short of the runway in trees.
- [NTSB CEN13CA573](https://openairdocs.org/ntsb/CEN13CA573.md): Schweizer SGS 2 33A · Hampshire, IL · Accident · No injuries · Data collection · Final report · Sep 2, 2013 · N2668H · Substantial damage
  > The student pilot's inadequate compensation for landing area conditions during an off-airport landing which resulted in a collision with an obstruction.
- [NTSB ERA13CA352](https://openairdocs.org/ntsb/ERA13CA352.md): Schweizer SGS 2-33A · Erwinna, PA · Accident · No injuries · Data collection · Final report · Aug 4, 2013 · N1211S · Substantial damage
  > The student pilot's improper altitude and energy management in the landing pattern which resulted in the glider impacting a tree and landing short of the runway.
- [NTSB CEN13CA385](https://openairdocs.org/ntsb/CEN13CA385.md): Schweizer SGS 2-33A · Waynesville, OH · Accident · No injuries · Data collection · Final report · Jun 29, 2013 · N36135 · Substantial damage
  > The pilot did not attain a proper touchdown point during the landing. Contributing to the accident was the simulated altimeter and spoiler failure and the flight instructor's lack of remedial action.
- [NTSB ERA13LA229](https://openairdocs.org/ntsb/ERA13LA229.md): Schweizer SGS 2-33A · Erwinna, PA · Accident · Serious injuries · Limited investigation · Final report · May 4, 2013 · N2045T · Substantial damage
  > The pilot’s loss of glider control due to improper rigging of the rudder control cables, the mechanic’s inadequate flight control checks following the glider’s most recent annual inspection, and the pilot’s failure to perform a thorough preflight inspection.
- [NTSB NYC08CA267](https://openairdocs.org/ntsb/NYC08CA267.md): Schweizer SGS 2-33A · Windsor, VA · Accident · No injuries · Data collection · Final report · Aug 3, 2008 · N33964 · Substantial damage
  > The student pilot's improper maneuvering at low altitude.

## 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 ('8051606')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s.case_mkey = x.case_mkey AND s.aircrafts_position = x.position AND s."tier2Number" = '470' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent")))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/470/sequence?model=8051606

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