# NTSB CHI71DDJ27: Bensen B8M, N2434, Waterford, WI, November 7, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: November 7, 1970
- Place: Waterford, WI · WATERFORD, WI
- Location: 42.7660° N, 88.2168° W: Placed by OpenAirDocs: center of Waterford, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.7660&lon=-88.2168&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 6, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 158829
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI71DDJ27
- Page: https://openairdocs.org/ntsb/CHI71DDJ27

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4544   70/11/7   WATERFORD,WIS       BENSEN B8M          CR-  0  0  1  NONCOMMERCIAL             STUDENT, AGE 52, 107
        TIME - 1530                    N2434               PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 17 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - HUNT
        DEPARTURE POINT             INTENDED DESTINATION
          WATERFORD,WIS               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           NOSE OVER/DOWN                                           LANDING: ROLL-ON/RUN-ON
        PROBABLE CAUSE(S)
           POWERPLANT - IGNITION SYSTEM: SPARK PLUG
           MISCELLANEOUS ACTS,CONDITIONS - CARBON DEPOSITS
           MISCELLANEOUS - EVASIVE MANEUVER TO AVOID COLLISION
           TERRAIN - ROUGH/UNEVEN
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - TOUCH AND GO LANDING
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- NR 1 AND 2 SPARK PLUGS FOULED.PLT MADE LOW PWR APCH PREVIOUSLY.LND ACROSS FURROWS TO AVOID TREES.
```

## Aircraft

- Registration: [N2434](https://openairdocs.org/deregistered/N2434-2024-07-27), registration cancelled 2024-07-27, S/N 101, built 1970 (OpenAirDocs)
- Reported make and model: BENSEN B8M
- Registry model: [Lueders BENSEN B-8MV](https://openairdocs.org/model/lueders-bensen-b-8mv) (registry code 13007B0) (OpenAirDocs)
- Registry engine: [Volkswagen CONVERSION](https://openairdocs.org/engine/volkswagen-conversion) (registry code 63501, reciprocating) (OpenAirDocs)
- Category: Gyroplane, amateur-built
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Hunt

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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