# NTSB CHI70AC075: Cessna 150J, N5539G, Fond Du Lac, WI, April 28, 1970

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: April 28, 1970
- Place: Fond Du Lac, WI · FOND DU LAC, WI
- Location: 43.7722° N, 88.4403° W: Placed by OpenAirDocs: center of Fond du Lac, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.7722&lon=-88.4403&mi=10
- Phase of flight: [Uncontrolled descent](https://openairdocs.org/ntsb-phases/650) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed, report July 10, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 140490
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI70AC075
- Page: https://openairdocs.org/ntsb/CHI70AC075

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0448  70/4/28    FOND DU LAC,WIS     CESSNA 150J         CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 24, 85 TOTAL
        TIME - 2029                    N5539G              PX-  1  0  0  PRACTICE                  HOURS, 67 IN TYPE, NOT
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          GREEN BAY,WIS               FOND DU LAC,WIS              SHAWANO,WIS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS
           PILOT IN COMMAND - SPATIAL DISORIENTATION
        FACTOR(S)
           WEATHER - FOG
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY PHONE
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OBSCURATION                                              UNKNOWN/NOT REPORTED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          UNKNOWN/NOT REPORTED                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TYPE OF WEATHER CONDITIONS
          FOG                                                      IFR
        TYPE OF FLIGHT PLAN
          VFR
```

## Aircraft

- Registration: [N5539G](https://openairdocs.org/deregistered/N5539G-1971-03-19), registration cancelled 1971-03-19, S/N 15071039 (OpenAirDocs)
- Reported make and model: CESSNA 150J
- Registry model: [Cessna 150J](https://openairdocs.org/model/cessna-150j) (registry code 2071820) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

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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