# NTSB CHI79FDP35: Beech G18S, N847U, Clintonville, WI, March 9, 1979

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 9, 1979
- Place: Clintonville, WI · CLINTONVILLE, WI
- Location: 44.6221° N, 88.7517° W: Placed by OpenAirDocs: center of Clintonville, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.6221&lon=-88.7517&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report January 17, 1980
- Report: Brief approved by the director
- NTSB case key (mKey): 136954
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI79FDP35
- Page: https://openairdocs.org/ntsb/CHI79FDP35

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3232   79/3/9  NR.CLINTONVILLE,WI    BEECH G18S          CR-  0  0  1  COMMERCIAL                STUDENT, AGE 37, 2000
        TIME - 2300                    N847U               PX-  0  0  0  AIR TAXI-CARGO            TOTAL HOURS, INSTRUMENT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          MILWAUKEE,WI                CLINTONVILLE,WI
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        FACTOR(S)
           AIRFRAME - FUSELAGE: DOORS,DOOR FRAMES
           SYSTEMS - ELECTRICAL SYSTEM: SWITCHES
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER ALIGNMENT/ADJUSTMENT
        REMARKS- AFT CARGO DOOR OPENED.DOOR-OPEN WARNING LITE SWITCH INOP.
```

## Aircraft

- Registration: N847U (not matched to a registry record)
- Reported make and model: BEECH G18S
- Category: Airplane
- 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 19790309032649A](https://openairdocs.org/incident/19790309032649A), Mar 9, 1979: Beech G18S, Clintonville, WI, Substantial damage. Cargo door came open in flight. After landing,the door was properly latched. The failure could not be duplicated.

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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