NTSB investigations: Schweizer SGS 2-33A, CO

11 cases on aircraft the registry lists as Schweizer SGS 2-33A. 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

19772026
NTSB investigations: Schweizer SGS 2-33A, CO per year, 1977–2026: 11 cases
19772
19781
19791
19821
19832
19861
20081
20241
20261

Latest 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.\"eventStateOrRegion\" = 'CO' 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 ('8051606'))
  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.

NTSB WPR26LA273Accident · Minor injuriesClass 4 · LimitedFinal reportSchweizer SGS 2-33A · Boulder, COThe pilot’s improper landing flare which resulted in a stall and a hard bounced landing.Jul 7, 2026 · N2793H · Substantial damageNTSB CEN24LA133Accident · Minor injuriesClass 4 · LimitedFinal reportSchweizer SGS 2-33A · Falcon, COThe flight instructor’s failure to maintain control during takeoff which resulted in an aerodynamic stall and an impact with terrain.Mar 12, 2024 · N2905H · Substantial damageNTSB DEN08CA157Accident · No injuriesData collectionFinal reportSchweizer SGS 2-33A · Boulder, COThe pilot's failure to use the dive brake during landing resulting in a long landing and collision.Sep 9, 2008 · N17939 · Substantial damageNTSB DEN86LA226Accident · No injuriesLimited investigationFinal reportSchweizer SGS 2-33A · Durango, COThe plt was attempting to land his glider. He said that he was unable to reach the airport and elected to land in a nearby pasture. Prior to touchdown he discovered some cattle in the field but was unable to avoid a collision with one of the animals. The…Aug 9, 1986 · N7590 · Substantial damageNTSB DEN84LA009Accident · No injuriesLimited investigationFinal reportSchweizer SGS 2-33A · Falcon, CODuring the descent for landing, the plt observed that the wind was from the south. The plt decided to land downwind in the upsloping direction of the glider strip rather than upwind in the downsloping direction. He made his base leg too close to the strip &…Oct 16, 1983 · N1232S · Substantial damageNTSB DEN83LA210Accident · No injuriesLimited investigationFinal reportSchweizer SGS 2-33A · Durango, COAfter releasing from an aerial tow about 2,000 ft AGL, the plt was unable to find lifting thermals. The glider began to descend about 800 fpm so the plt maneuvered to return to the airstrip. The glider collided with several small trees short of the rwy.Sep 4, 1983 · N7590 · Substantial damageNTSB DEN82DA064Accident · No injuriesFinal reportSchweizer SGS-2-33A · Colorado Spring, COThe student pilot reported that he came over the airport at about 1200 ft AGL to enter a downwind for landing. He stated that he encountered a moderate to strong sink and strong southerly winds. He estimated that the wind velocity was 45 to 50 mph at 1000 ft…Apr 17, 1982 · N2045T · Substantial damageNTSB DEN79DTE85Accident · Serious injuriesClosedSchweizer SGS233 · Colorado Spgs, COSep 26, 1979 · N65840 · Substantial damageNTSB DEN78FTE92Accident · No injuriesClosedSchweizer 2-33A · Boulder, COAug 26, 1978 · N2624H · Substantial damageNTSB DEN77FTE42Accident · No injuriesClosedSchwiezer SGS233 · Boulder, COMay 13, 1977 · N65829 · Substantial damageNTSB DEN77DTE38Accident · Serious injuriesClosedSchweizer 2-33A · Wellington, COMay 4, 1977 · N2624H · Substantial damage