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NTSB investigations: Schweizer SGS 2-33A, CA

33 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.

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19682026

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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 ('8051606')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

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\" = '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 ('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.

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 ('8051606'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

Run it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.

NTSB WPR26LA246Accident · Serious injuriesClass 4 · LimitedFinal reportSchweizer SGS 2-33A · Lake Elsinore, CAThe student pilot’s failure to maintain a proper glidepath, which resulted in a long landing and collision with a person on the ground.Jul 5, 2026 · N5790S · Substantial damage NTSB WPR20CA273Accident · No injuriesClass 4 · Data collectionFinal reportSchweizer SGS233 · Warner Springs, CAThe pilot's inability to maintain altitude due to a loss of thermal lift, which resulted in an off-airport landing.Aug 14, 2020 · N7547 · Substantial damage NTSB WPR12LA285Accident · No injuriesLimited investigationFinal reportSchweizer SGS233 · Truckee, CAThe pilot's failure to maintain control of the glider while taking off with a gusting wind, which resulted in the glider impacting a runway sign.Jun 9, 2012 · N2061T · Substantial damage NTSB WPR09CA359Accident · No injuriesData collectionFinal reportSchweizer SGS-2-33A · Truckee, CAThe student pilot's failure to maintain adequate airspeed to avoid a stall during final approach to land. Contributing to the accident was the pilot’s lack of experience.Jul 19, 2009 · N65825 · Substantial damage NTSB SEA08CA011Accident · No injuriesData collectionFinal reportSchweizer SGS 2-33A · Tehachapi, CAThe pilot's misjudged distance/altitude that led to an undershoot, and his failure to attain the proper touchdown point.Oct 15, 2007 · N17888 · Substantial damage NTSB LAX07CA172Accident · No injuriesData collectionFinal reportSchweizer SGS2-33A · Los Alamitos, CAfailure of the towrope during the initial climb out.May 22, 2007 · N65844 · Substantial damage NTSB LAX02LA079Accident · No injuriesLimited investigationFinal reportSchweizer SGS 2-33A · Warner Springs, CAThe student pilot's failure to maintain directional control during the landing sequence.Feb 4, 2002 · N34292 · Substantial damage NTSB LAX97LA160Accident · No injuriesLimited investigationFinal reportSchweizer SGS 2-33A · Llano, CAthe student pilot's inadequate compensation for the crosswind condition, and his failure to maintain proper altitude and clearance from the boundry fence, during an approach to land on the runway. Factors relating to the accident were: the crosswind, and…Apr 12, 1997 · N2037T · Substantial damage NTSB LAX97LA024Accident · No injuriesLimited investigationFinal reportSchweizer 2-33-A · Los Alamitos, CAThe student pilot's failure to properly handle the glider, and the instructor pilot's inadequate supervision.Oct 20, 1996 · N65844 · Substantial damage NTSB LAX93LA013Accident · Minor injuriesLimited investigationFinal reportSchweizer SGS 2-33A · Warner Springs, CAThe pilot's inadequate planned approach to the runway, and, his improper use of the flight controls which resulted in an inadvertent accelerated stall/spin.Oct 17, 1992 · N1176S · Substantial damage NTSB LAX92LA021Accident · Serious injuriesLimited investigationFinal reportSchweizer SGS-2-33A · Fremont, CAThe pilot's inadequate altitude on final approach.Oct 20, 1991 · N17886 · Destroyed NTSB LAX91LA165Accident · No injuriesLimited investigationFinal reportSchweizer SGS 2-33A · Hemet, CAThe failure of the PIC to select a proper touch down point. Contributing to the accident was the lack of recent familiarity with the geographic layout of the landing area.Apr 8, 1991 · N2032T · Substantial damage NTSB LAX89LA291Accident · Minor injuriesLimited investigationFinal reportSchweizer SGS 2-33A · Hemet, CAInadequate crew coordination between the tow pilot and glider pilot, failure of the glider pilot to obtain proper assistance, and the tow pilot's misunderstanding of the glider pilot's intentions.Aug 30, 1989 · N65843 · 2 aircraft · Destroyed NTSB LAX88LA209Accident · No injuriesLimited investigationFinal reportSchweizer SGS 2-33A · Vacaville, CAAt the end of a pleasure flt, the plt extended the downwind leg for landing, thinking that the touchdown altitude was 12 ft instead of, in actuality, 220 ft. the plt normally flew out of another airport with an alt of 12 ft. from the extended downwind, the…Jun 3, 1988 · N7768S · Substantial damage NTSB LAX88LA145Accident · No injuriesLimited investigationFinal reportSchweizer SGS 2-33A · Warner Springs, CAMar 27, 1988 · N2655H · Substantial damage NTSB LAX86LA187Accident · No injuriesLimited investigationFinal reportSchweizer SGS-2-33A · Hemet, CAA glider struck wires while on final apch to a field. The plt indicated that he was towed to an alt of 5,000 ft MSL (aprx 3,500 ft AGL). On release, he encountered a downdraft of more than 500 ft per minute and was only able to stay airborne 6 to 7 minutes.…Apr 23, 1986 · N2032T · Substantial damage NTSB LAX85LA003Accident · Serious injuriesLimited investigationFinal reportSchweizer SGS 2-33 · Twentynine Palm, CAWhile being towed at an alt of aprx 200 ft AGL glider was below normal tow position. Glider was put into a nose high attitude for correction and the weak link in the tow line separated. Glider stalled, rt wing dropped and acft contacted the terrain.Oct 6, 1984 · N2616H · Destroyed NTSB LAX84LA052Accident · No injuriesLimited investigationFinal reportSchweizer SGS 2-33A · Fremont, CAAfter receiving an aero tow to 3,000 ft MSL & being released 5 mi from the departure arpt, the plt thermaled for about 5 min. He then descended to 2,300 ft MSL & turned back toward the arpt. He encountered 'heavy sink' had insufficient altitude to reach the…Nov 11, 1983 · N1239S · Substantial damage NTSB LAX83LA145Accident · Serious injuriesLimited investigationFinal reportSchweizer SGS2-33A · Fremont, CAThe acft banged into the ground during the takeoff ground run. The glider had swerved off the rwy during the tow into a muddy grass area, the plt attempted a premature takeoff to prevent getting struck in the mud. He stated that lack of forward speed and the…Mar 7, 1983 · N7547 · Minor damage NTSB OAK79FVG45Accident · Serious injuriesClosedSchweizer SGS233 · Vacaville, CAMay 27, 1979 · N5783S · Substantial damage NTSB LAX77DUQ44Accident · No injuriesClosedSchweizer SGS233 · Rosamond, CAJul 20, 1977 · N17961 · Substantial damage NTSB LAX77DUM21Accident · No injuriesClosedSchweizer SGS233 · San Diego, CAMar 12, 1977 · N5797S · Substantial damage NTSB OAK77FVD10Accident · Minor injuriesClosedSchweizer 2-33 · Fremont, CAJan 21, 1977 · N1239S · Substantial damage NTSB LAX76DUG44Accident · No injuriesClosedSchweizer SGS233 · Adelanto, CAFeb 29, 1976 · N7589 · Substantial damage NTSB OAK76AP013Accident · 1 fatalClosedSchweizer SGS233 · Calistoga, CAOct 6, 1975 · N7787S · Destroyed NTSB LAX73DUG58Accident · Serious injuriesClosedSchweizer 2-33A · Elsinore, CAMay 28, 1973 · N17961 · Substantial damage NTSB OAK73DVD27Accident · Minor injuriesClosedSchweizer SGS233 · Fremont, CAMar 20, 1973 · N7547 · Substantial damage NTSB OAK72DVG75Accident · No injuriesClosedSchweizer SGS233 · Calistoga, CAJun 17, 1972 · N5754S · Substantial damage NTSB LAX71FUQ08Accident · No injuriesClosedSchweizer 2-33 · Pearblossom, CAJul 19, 1970 · N7552 · Substantial damage NTSB LAX70D0225Accident · No injuriesClosedSchweizer SGS233 · Elsinore, CADec 15, 1969 · N5782S · Substantial damage NTSB LAX70D0204Accident · No injuriesClosedSchweizer SGS233 · Elsinore, CANov 22, 1969 · N5782S · Substantial damage NTSB LAX70D0155Accident · No injuriesClosedSchempp-H Cirrus · Pearblossom, CAOct 4, 1969 · N240F · 2 aircraft · Substantial damage NTSB LAX69D0109Accident · No injuriesClosedSchweizer SGS233 · Pearblossom, CAAug 4, 1968 · N5706S · Substantial damage