NYC95LA189 · Schweizer SGS 2-33A
Schweizer SGS 2-33A · Accident: in flight collision with object on approach
From Van Sant Airport (9N1) to an unrecorded destination
Event
- NTSB case
- NYC95LA189
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Accident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Completed
- API-reported fatalities
- 0 · all aircraft and ground
- Ground fatalities
- 0
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- General aviation
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Visual Meteorological Cond
Schweizer SGS 2-33A
- Aircraft type
- Schweizer SGS-2
- Category
- Glider
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- N5750S
- Operator
- Unknown
- Onboard fatalities
- Unknown
- Route
- From Van Sant Airport (9N1)To not recorded
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Part 91: General Aviation
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Approach · VFR pattern final
- First occurrenceThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- In flight collision with object
- Also codedOther events the NTSB coded in the sequence, such as a wire strike after a loss of power. Flight Findings uses them for its kinds of event. Glossary
- Tree(s)
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Substantial
Cause areas
- Pilot in command(cfi) › Supervision, inadequate
Approximate · Coordinates as recorded by the NTSB; no uncertainty radius is established.
NTSB narrative
THE FLIGHT INSTRUCTOR AND STUDENT PILOT HAD RETURNED TO THE AIRPORT FOR LANDING AFTER CONDUCTING AIRWORK. DURING THE APPROACH THE GLIDER COLLIDED WITH TREES. THE INSTRUCTOR STATED THAT HE ASKED THE STUDENT HOW THE ALTITUDE LOOKED FOR THE APPROACH, AND '...HE [THE STUDENT] RESPONDED THAT WE WERE HIGH AND IMMEDIATELY OPENED THE DIVE BRAKES FULLY AND PUT IN A MODERATE SLIP. I SAID NO....I PUSHED THE DIVE BRAKES SHUT AND TOLD THE STUDENT TO TAKE OUT THE SLIP....I AIMED FOR A NOTCH IN THE TREES, PUT IN [A] CRAB TO STOP THE SIDE DRIFT AND FLY ALONG THE LINE OF THE RUNWAY....BOTH WINGTIPS HIT THE TREES....' ADDITIONALLY, THE INSTRUCTOR REPORTED THAT THERE WERE NO MECHANICAL MALFUNCTIONS OR FAILURES WITH THE GLIDER.
Probable cause
the flight instructor's inadequate supervision during the final approach which resulted in the student flying a low approach and a subsequent collision with the trees. A factor relating to the accident was the student pilot's failure to maintain a proper glidepath.
Verbatim NTSB analysis and probable cause from the NTSB dataset
Sources
NTSB record NYC95LA189
- Event ID
- 20001207X04351
- Case number
- NYC95LA189
- Dataset
- historical-pre2008
- Source SHA-256
- 89e2df6d848e7ab3b42e7d7c7a03ff403303057a26ca04c95b3ea67201c3ce74
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- Filled from the NTSB case API where the bulk record had no value: investigation status. Values present in the bulk record are kept.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: 25bd5d5c8cf57f96c3b1b3a65647318d1b18fb62951be3079aa759652012d8b7; retrieved 2026-09-22T23:26:44.635Z.