# NTSB CHI70D0291: Schweizer SGS233, N7759S, Highland, IL, September 6, 1969

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 6, 1969
- Place: Highland, IL · HIGHLAND, IL
- Location: 38.7704° N, 89.6861° W: Placed by OpenAirDocs: center of Highland, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.7704&lon=-89.6861&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report May 6, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 156244
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI70D0291
- Page: https://openairdocs.org/ntsb/CHI70D0291

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3909   69/9/6    HIGHLAND,ILL        SCHWEIZER SGS233    CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 22, 44 TOTAL
        TIME - 1345                    N7759S              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  HOURS, 21 IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - HIGHLAND
        DEPARTURE POINT             INTENDED DESTINATION
          HIGHLAND,ILL                HIGHLAND,ILL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           UNDERSHOOT                                               LANDING: FINAL APPROACH
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED DISTANCE AND ALTITUDE
           WEATHER - UNFAVORABLE WIND CONDITIONS
        FACTOR(S)
           PILOT IN COMMAND - FAILED TO USE OR INCORRECTLY USED MISC.EQUIPMENT
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  ADVERSE/UNFAVORABLE WEATHER
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  3000
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  WIND DIRECTION-DEGREES
          NONE                                                     360
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           30                                                      VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- MISUSED DIVE BRAKES. APCHING TSTM.
```

## Aircraft

- Registration: [N7759S](https://openairdocs.org/deregistered/N7759S-2009-07-14), registration cancelled 2009-07-14, S/N 129, built 1968 (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)
- Registry engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000, none) (OpenAirDocs)
- Category: Glider
- Engines: none
- Damage: Substantial damage
- Airport: Highland

## Other investigations on N7759S (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 FTW72DPG38](https://openairdocs.org/ntsb/FTW72DPG38), Sep 5, 1971: Schweizer SGS233 (N7759S), Abbott, AR, substantial damage
- [NTSB CHI70DCA13](https://openairdocs.org/ntsb/CHI70DCA13), May 16, 1970: Schweizer 2-33 (N7759S), Highland, IL, 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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