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NTSB investigations: Schweizer SGS 2-33A

21 cases on aircraft the registry lists as Schweizer SGS 2-33A, where the first occurrence was “In flight collision with object”. 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

19852026

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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.\"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_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o.\"occurrenceNumber\" = 1 AND o.\"occurrenceCode\" = 220))
  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 CHI07CA291Accident · Minor injuriesData collectionFinal reportSchweizer SGS 2-33A · Alliance, OHThe pilot's inattentiveness during the aircraft preflight and his failure to maintain clearance above the trees.Sep 1, 2007 · N65832 · DestroyedNTSB IAD03LA046Accident · No injuriesLimited investigationFinal reportSchweizer SGS 2-33A · Sterling, MAThe student pilot's misjudgment of his traffic pattern altitudes, which resulted in a premature descent into a tree.Apr 19, 2003 · N1241S · Substantial damageNTSB 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 damageNTSB 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 damageNTSB IAD97LA062Accident · Minor injuriesLimited investigationFinal reportSchweizer SGS-233A · Woodbine, MDThe pilot misjudged his altitude during approach.Mar 9, 1997 · N2559H · Substantial damageNTSB ATL95LA155Accident · No injuriesLimited investigationFinal reportSchweizer 233A · Louisburg, NCThe flight instructor's improper in-flight planning and decision, in that he failed to maintain sufficient altitude to clear the trees surrounding the airport, and failed to take into consideration the high density altitude at the time of the accident.Aug 12, 1995 · N7592 · Substantial damageNTSB NYC95LA156Accident · No injuriesLimited investigationFinal reportSchweizer S-2-33A · Elmira, NYThe pilot's delayed decision to return to the departure airport, which resulted in insufficient gliding altitude, and the subsequent off airport landing in the trees.Jul 9, 1995 · N3622X · Substantial damageNTSB BFO95LA015Accident · No injuriesLimited investigationFinal reportSchweizer SGS 2-33A · Hilltown, PAImproper in-flight planning decision by the pilot, which resulted in insufficient altitude to maintain clearance from trees.Nov 19, 1994 · N33938 · Substantial damageNTSB LAX94LA027Accident · No injuriesLimited investigationFinal reportSchweizer SGS 2-33A · Mokuleia, HIthe student pilot's misjudgement of descent rate and terrain clearance while manuevering along a ridgeline. Factors in the accident were the downdrafts and the mountainous/hilly nature of the terrain.Oct 28, 1993 · N7779S · Substantial damageNTSB BFO93LA161Accident · No injuriesLimited investigationFinal reportSchweizer SGS2-33A · Eighty Four, PAThe pilot's utilization of improper procedures for setting the altimeter which led to his misjudging altitude.Sep 6, 1993 · N34367 · Substantial damageNTSB CHI92LA197Accident · No injuriesLimited investigationFinal reportSchweizer SGS 2-33A · Manchester, MIThe pilot's improper inflight planning/decisions, failure to make a precautionary landing when he realized he was too low to reach the airport, and attempting to stretch his glidepath to reach the runway.Jul 5, 1992 · N2524H · Substantial damageNTSB MIA92LA028Accident · No injuriesLimited investigationFinal reportSchweizer SGS 2-33A · Groveland, FLPoor in-flight planning/decision by the pilot-in-command resulting in the off airport landing. Contributing to the accident was his lack of total experience.Nov 14, 1991 · N2890H · Substantial damageNTSB LAX92LA021Accident · Serious injuriesLimited investigationFinal reportSchweizer SGS-2-33A · Fremont, CAThe pilot's inadequate altitude on final approach.Oct 20, 1991 · N17886 · DestroyedNTSB NYC90LA168Accident · Minor injuriesLimited investigationFinal reportSchweizer SGS-2-33A · Gt. Barrington, MAThe pilot's failure to maintain adequate clearance from tree during the precautionary landing. Factor was a loss of thermal lift.Jul 21, 1990 · N2724H · Substantial damageNTSB FTW90DPJ09Accident · No injuriesFinal reportSchweizer SGS 2-33A · Norman, OKThe pilot's misjudgement of proper glidepath.Jul 8, 1990 · N65879 · Substantial damageNTSB CHI90LA036Accident · No injuriesLimited investigationFinal reportSchweizer SGS-2-33A · Waynesville, OHThe dual student did not maintain proper glidepath and his misjudgment for compensation for wind conditions resulted in a collision with utility wires. The cfi's inadequate supervision during the duel flight operation contributed to the accident.Dec 3, 1989 · N2610H · Substantial damageNTSB MKC88LA117Accident · No injuriesLimited investigationFinal reportSchweizer 2-33 · Warrensburg, MODuring a student pilot's first solo in a glider, the plt said he misread the altimeter by 1000 feet. Attempting to land on the airport during the low approach, he struck trees, then a fence, before ground contact.Jun 28, 1988 · N7546 · Substantial damageNTSB ATL87LA093Accident · No injuriesLimited investigationFinal reportSchweizer SGS 2-33 · Waynesville, OHDuring the instructional flt to demonstrate emergency procedures, the instructor stated that he allowed the student to get too low on approach before he took corrective action. The aircraft collided with trees and subsequently the ground approx. 600 feet…Mar 22, 1987 · N2959H · Substantial damageNTSB LAX87LA035Accident · No injuriesLimited investigationFinal reportSchweizer SGS2-33A · Sun City, AZWhile on a solo instructional flight, the pilot was unable to find sufficient lift & decided to turn back toward the airport for landing. Due to his low altitude, he was not able to fly a normal pattern entry. A downwind landing was attempted; however, before…Nov 9, 1986 · N7558 · Substantial damageNTSB NYC85LA254Accident · Minor injuriesLimited investigationFinal reportSchweizer SGS 2-33A · Preble, NYA Schweizer N33920, collided with a utility pole while executing a go around at Preble airport, NY. The acft was destroyed. The plt and passenger received minor injuries. The plt stated that the first two flights were uneventful, but noticed the stall speed…Sep 29, 1985 · N33920 · Substantial damageNTSB BFO85LA046Accident · No injuriesLimited investigationFinal reportSchweizer SGS 2-33A · Warrenton, VAThe plt was obtaining transition tng fm pwrd acft to gliders and had flown 3 dual flts n N2885H on the morning of the accident with an instruction on board. The CFI then authorized him to fly his list solo flt and acft tkof obsvd the glider make what he…May 19, 1985 · N2885H · Substantial damage