# NTSB CHI66F0138: Schweizer 2-22E, N684U, Oak Brook, IL, July 20, 1965

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 20, 1965
- Place: Oak Brook, IL · OAK BROOK, IL
- Location: 41.8364° N, 87.9532° W: Placed by OpenAirDocs: center of Oak Brook, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.8364&lon=-87.9532&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report September 20, 1965
- Report: Brief approved by the director
- NTSB case key (mKey): 176507
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI66F0138
- Page: https://openairdocs.org/ntsb/CHI66F0138

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2219  65/7/20    OAK BROOK ILL       SCHWEIZER 2-22E     CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, AGE 22, 257
        TIME - 1130                    N684U               PX-  0  0  0  DUAL                      TOTAL HOURS, 17 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - OAK BROOK FIELD
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           UNDERSHOOT                                               LANDING: FINAL APPROACH
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED DISTANCE AND ALTITUDE
        REMARKS- GLIDER FLIGHT.
```

## Aircraft

- Registration: [N684U](https://openairdocs.org/deregistered/N684U-2013-02-13), registration cancelled 2013-02-13, S/N 219, built 1965 (OpenAirDocs)
- Reported make and model: SCHWEIZER 2-22E
- Registry model: [Schweizer SGU 2-22E](https://openairdocs.org/model/schweizer-sgu-2-22e) (registry code 8050612) (OpenAirDocs)
- Registry engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000, none) (OpenAirDocs)
- Category: Glider
- Engines: none
- Damage: Substantial damage
- Airport: Oak Brook Field

## Other investigations on N684U (1)

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 NYC75DHA44](https://openairdocs.org/ntsb/NYC75DHA44), May 18, 1975: Schweizer 2-22 (N684U), Pittstown, NJ, 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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