# NTSB investigations: Schweizer SGS 2-33A: Loss of control - in flight 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 CHI07CA232](https://openairdocs.org/ntsb/CHI07CA232.md): Schweizer SGS 2-33A · Warrensburg, MO · Accident · Serious injuries · Data collection · Final report · Jul 26, 2007 · N33950 · Substantial damage > The flight instructor's failure to maintain adequate airspeed and aircraft control, which resulted in a stall while on final approach. A factor in the accident were the two fences. - [NTSB IAD05CA148](https://openairdocs.org/ntsb/IAD05CA148.md): Schweizer SGS-2-33A · Windsor, VA · Accident · No injuries · Data collection · Final report · Sep 25, 2005 · N33964 · Substantial damage > The solo student pilot's loss of control during landing. - [NTSB ATL96LA089](https://openairdocs.org/ntsb/ATL96LA089.md): Schweizer SGS233A · Franklinton, NC · Accident · No injuries · Limited investigation · Final report · May 30, 1996 · N1197S · Substantial damage > the failure of the instructor pilot to maintain control of the aircraft. - [NTSB NYC96LA111](https://openairdocs.org/ntsb/NYC96LA111.md): Schweizer SGS-2-33A · Bloomingburg, NY · Accident · Serious injuries · Limited investigation · Final report · May 19, 1996 · N65847 · Minor damage > The pilot's failure to maintain adequate airspeed, which resulted in an inadvertent stall spin and collision with trees. - [NTSB LAX94LA124](https://openairdocs.org/ntsb/LAX94LA124.md): Schweizer 2-33-A · Dillingham, HI · Accident · No injuries · Limited investigation · Final report · Feb 13, 1994 · N3622Z · Substantial damage > the pilot's failure to maintain an adequate airspeed margin while maneuvering in the traffic pattern and his inadvertent entry into a stall/mush condition. - [NTSB LAX93LA013](https://openairdocs.org/ntsb/LAX93LA013.md): Schweizer SGS 2-33A · Warner Springs, CA · Accident · Minor injuries · Limited investigation · Final report · Oct 17, 1992 · N1176S · Substantial damage > The pilot's inadequate planned approach to the runway, and, his improper use of the flight controls which resulted in an inadvertent accelerated stall/spin. - [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 NYC88LA022](https://openairdocs.org/ntsb/NYC88LA022.md): Schweizer 2-33 · Blairstown, NJ · Accident · Serious injuries · Limited investigation · Final report · Oct 31, 1987 · N2669H · Destroyed > As the glider was being towed it lifted too high above the tow plane. At an altitude of about 55 to 65 feet it was disconnected. However the glider was tilting slightly to the right and as the pilot attempted to correct, it stalled and crashed. - [NTSB NYC88LA014](https://openairdocs.org/ntsb/NYC88LA014.md): Schweizer SGS-2-33A · Mansfield, MA · Accident · No injuries · Limited investigation · Final report · Oct 24, 1987 · N5775S · Substantial damage > The Schweizer SGS-2-33A was in the traffic pattern with a student pilot and flight instructor. In the right turn from base to final, the nose dropped and control was lost. The flight instructor took control of the aircraft, and regained control, however,… - [NTSB NYC87DFA02](https://openairdocs.org/ntsb/NYC87DFA02.md): Schweizer SGS 2-33A · Wurtsboro, NY · Accident · No injuries · Final report · Nov 30, 1986 · N1222S · Substantial damage > The pilot was landing a Schweizer SGS-233 when he started to get into a pilot induced oscillation. The oscillations increased and the aircraft impacted in a nose low attitude. The pilot said the accident could have been prevented with less control input,… - [NTSB NYC86LA189](https://openairdocs.org/ntsb/NYC86LA189.md): Schweizer SGS-2-33A · Plymouth, MA · Accident · No injuries · Limited investigation · Final report · Jul 22, 1986 · N33985 · Substantial damage > Shortly after takeoff, the tow was released from the glider when its nose started rising uncontrollably. The glider thencollided with the ground & was substantially damaged. The plt rprted the accident could have been avoided by more info &emphasis on the… - [NTSB LAX85LA003](https://openairdocs.org/ntsb/LAX85LA003.md): Schweizer SGS 2-33 · Twentynine Palm, CA · Accident · Serious injuries · Limited investigation · Final report · Oct 6, 1984 · N2616H · Destroyed > While 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. - [NTSB LAX84LA052](https://openairdocs.org/ntsb/LAX84LA052.md): Schweizer SGS 2-33A · Fremont, CA · Accident · No injuries · Limited investigation · Final report · Nov 11, 1983 · N1239S · Substantial damage > After 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… - [NTSB ATL83LA266](https://openairdocs.org/ntsb/ATL83LA266.md): Schweizer SGS-2-33A · Warrenton, VA · Accident · Minor injuries · Limited investigation · Final report · Jul 9, 1983 · N2743H · Substantial damage > The pilot collided with a tree while landing in windy conditions. The pilot had flown one dual flt on this day and then went up for a 39 minute solo flt. Upon her return she was low on downwind so she made a close in base but drifted to theright on final in… ## 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_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 250)) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?model=8051606&occurrence=250 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.