# NTSB CHI67F0473: Piper PA-28, N7731W, Evergreen Pk, IL, February 16, 1967

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 16, 1967
- Place: Evergreen Pk, IL · EVERGREEN PK, IL
- Location: 41.7213° N, 87.7013° W: Placed by OpenAirDocs: center of Evergreen Park, IL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.7213&lon=-87.7013&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report July 26, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 118993
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI67F0473
- Page: https://openairdocs.org/ntsb/CHI67F0473

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0516  67/2/16    EVERGREEN PK,ILL    PIPER PA-28         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 42, 350
        TIME - 1215                    N7731W              PX-  0  0  3  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 100 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - CHICAGO MIDWAY
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           PROPELLER/ROTOR FAILURE: PROPELLER                       LANDING: TRAFFIC PATTERN-CIRCLING
           COLLIDED WITH: DITCHES                                   LANDING: ROLL
        PROBABLE CAUSE(S)
           POWERPLANT - PROPELLER AND ACCESSORIES: BLADES
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
           MISCELLANEOUS ACTS,CONDITIONS - UNAPPROVED MODIFICATION
           MISCELLANEOUS ACTS,CONDITIONS - PREVIOUS DAMAGE
           TERRAIN - SNOW-COVERED
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
                                  PROP/ENGINE VIBRATION
        REMARKS- 9-1/8 INCHES OF ONE PROP BLADE BROKEN OFF.PROP 1 IN TOO SHORT.FAILED IN AREA OF PREVIOUS REPAIRS.
```

## Aircraft

- Registration: [N7731W](https://openairdocs.org/deregistered/N7731W-1978-02-06), registration cancelled 1978-02-06, S/N 28-1739 (OpenAirDocs)
- Reported make and model: PIPER PA-28
- Registry model: [Piper PA-28-180](https://openairdocs.org/model/piper-pa-28-180) (registry code 7102808) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Chicago Midway

## Other investigations on N7731W (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 MKC77FA037](https://openairdocs.org/ntsb/MKC77FA037), Sep 3, 1977: Piper PA-28 (N7731W), Eagle Butte, SD, destroyed, 3 fatal
- [NTSB UNK65X0137](https://openairdocs.org/ntsb/UNK65X0137), Oct 4, 1964: Piper PA28 (N7731W), Hobart, IN, 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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