# NTSB NYC76DFJ33: Schweizer SGS233, N17870, Ithaca, NY, September 6, 1976

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: September 6, 1976
- Place: Ithaca, NY · ITHACA, NY
- Location: 42.4439° N, 76.5031° W: Placed by OpenAirDocs: center of Ithaca, NY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.4439&lon=-76.5031&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 1 uninjured
- Status: Completed, report December 16, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 155699
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC76DFJ33
- Page: https://openairdocs.org/ntsb/NYC76DFJ33

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3188   76/9/6    ITHACA,NY           SCHWEIZER SGS233    CR-  0  1  0  NONCOMMERCIAL             PRIVATE,FL.INSTR., AGE
        TIME - 1400                    N17870              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  52, 2500 TOTAL HOURS,
                                       DAMAGE-NONE         OT-  0  0  0                            1500 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - GRUND FIELD
        DEPARTURE POINT             INTENDED DESTINATION
          ITHACA,NY                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           WEATHER - UNFAVORABLE WIND CONDITIONS
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  RELATIVE BEARING OF WIND
          NONE                                                     RIGHT QUARTERING HEAD WIND 023-067 DEGREES
        TEMPERATURE-F                                            WIND DIRECTION-DEGREES
           70                                                      315
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           12                                                      VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- ACFT ENCOUNTERED WIND SHEAR TURBULENCE. WIND GUSTING TO 18KTS. NO DAMAGE TO GLIDER.
```

## Aircraft

- Registration: [N17870](https://openairdocs.org/deregistered/N17870-1994-06-27), registration cancelled 1994-06-27, S/N 240 (OpenAirDocs)
- Reported make and model: SCHWEIZER SGS233
- Registry model: [Schweizer SGS 2-33A](https://openairdocs.org/model/schweizer-sgs-2-33a) (registry code 8051606) (OpenAirDocs)
- Category: Glider
- Engines: none
- Damage: No damage
- Airport: Grund Field

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19760906029479A](https://openairdocs.org/incident/19760906029479A), Sep 6, 1976: Scwzer SGS233A, Ithaca, NY. Acft encountered wind shear turbulence. Wind gusting to 18KTS. No damage to glider.

## Other investigations on N17870 (2)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB BFO93LA095](https://openairdocs.org/ntsb/BFO93LA095), May 21, 1993: Schweizer SGS-233A (N17870), Johnson City, NY, substantial damage. Probable cause: IMPROPER PLANNING/DECISION BY THE FLIGHT CREW. FACTORS RELATED TO THE ACCIDENT WERE: THE DOWNDRAFT ON FINAL APPROACH, THE TERRAIN CONDITIONS (CLIFF & OBSTRUCTIONS) NEAR THE APPROACH END OF THE…
- [NTSB NYC79FFJ29](https://openairdocs.org/ntsb/NYC79FFJ29), Sep 15, 1979: Schweizer 2-33A (N17870), Ithaca, NY, substantial damage

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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