# NTSB CHI71DEE93: Schwiezer 1-26B, N688U, Naperville, IL, May 22, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 22, 1971
- Place: Naperville, IL · NAPERVILLE, IL
- Location: 41.7859° N, 88.1473° W: Placed by OpenAirDocs: center of Naperville, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.7859&lon=-88.1473&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report January 13, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 161544
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI71DEE93
- Page: https://openairdocs.org/ntsb/CHI71DEE93

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1668  71/5/22    NAPERVILLE,ILL      SCHWIEZER 1-26B     CR-  0  0  1  NONCOMMERCIAL             STUDENT, AGE 46, 20 TOTAL
        TIME - 1415                    N688U               PX-  0  0  0  PLEASURE/PERSONAL TRANSP  HOURS, 9 IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - CLOW
        DEPARTURE POINT             INTENDED DESTINATION
          NAPERVILLE,ILL              LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           OVERSHOOT                                                LANDING: LEVEL OFF/TOUCHDOWN
           COLLIDED WITH: RUNWAY OR APPROACH LIGHTS                 LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED DISTANCE AND SPEED
           PILOT IN COMMAND - FAILED TO USE OR INCORRECTLY USED MISC.EQUIPMENT
        REMARKS- FAILED TO DEPLOY SPOILERS.
```

## Aircraft

- Registration: [N688U](https://openairdocs.org/aircraft/N688U), registered now, S/N 307 (OpenAirDocs)
- Reported make and model: SCHWIEZER 1-26B
- Registry model: [Schweizer SGS 1-26B](https://openairdocs.org/model/schweizer-sgs-1-26b) (registry code 8050118) (OpenAirDocs)
- Registry engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000, none) (OpenAirDocs)
- Category: Glider
- Engines: none
- Damage: Substantial damage
- Airport: Clow

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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