# NTSB CHI73FEE50: Volksplane 473, N6552, Naperville, IL, April 8, 1973

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: April 8, 1973
- 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: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report June 22, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 170513
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI73FEE50
- Page: https://openairdocs.org/ntsb/CHI73FEE50

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1379   73/4/8    NAPERVILLE,ILL      VOLKSPLANE 473      CR-  0  1  0  NONCOMMERCIAL             PRIVATE, AGE 42, 2770
        TIME - 1800                    N6552               PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 4 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          NAPERVILLE,ILL              ADDISON,ILL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - ATTEMPTED OPERATION W/KNOWN DEFICIENCIES IN EQUIPMENT
           POWERPLANT - IGNITION SYSTEM: MAGNETOS
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (OWNER PERSONNEL)
           PILOT IN COMMAND - SELECTED UNSUITABLE TERRAIN
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING OFF AIRPORT
                                  SUSPECTED MECHANICAL DISCREPANCY
        REMARKS- MAGNETO IMPROPERLY TIMED.PREV LDG FARM FLD DUE MAG MALFUNCTION.UN GAIN OVR 200FT ALT LNDD ADJ FLD.
```

## Aircraft

- Registration: N6552 (not matched to a registry record)
- Reported make and model: VOLKSPLANE 473
- Category: Airplane, amateur-built
- Engines: reciprocating
- Damage: Substantial damage

## 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 19730408009399A](https://openairdocs.org/incident/19730408009399A), Apr 8, 1973: Kinner SPORTSTERK, Naperville, IL, Substantial damage. Magneto improperly timed. Prev ldg farm fld due mag malfunction. Un gain ovr 200FT alt lndd adj fld.

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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