# NTSB CHI81DEP47: Bensen B-8M, N513DE, Manitowoc, WI, September 12, 1981

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 12, 1981
- Place: Manitowoc, WI · MANITOWOC, WI
- Location: 44.0980° N, 87.6789° W: Placed by OpenAirDocs: center of Manitowoc, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.0980&lon=-87.6789&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report December 9, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 123403
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI81DEP47
- Page: https://openairdocs.org/ntsb/CHI81DEP47

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2818  81/9/12    MANITOWOC,WI        BENSEN B-8M         CR-  0  0  1  NONCOMMERCIAL             STUDENT, AGE 27, 35 TOTAL
        TIME - 1900                    N513DE              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  HOURS, ALL IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          MANITOWOC,WI                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLISION WITH GROUND/WATER: CONTROLLED                  LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: CYLINDER ASSEMBLY
           POWERPLANT - ENGINE STRUCTURE: PISTON,PISTON RINGS
           MISCELLANEOUS ACTS,CONDITIONS - BINDING
        FACTOR(S)
           TERRAIN - HIGH VEGETATION
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- L FNT CYL/PISTON SEIZED,MCCULLOCH 4318-AX ENG-UNAPPROVED D-16J SPARK PLUGS INSTLD.
```

## Aircraft

- Registration: [N513DE](https://openairdocs.org/deregistered/N513DE-2015-05-05), registration cancelled 2015-05-05, S/N 1, built 1968 (OpenAirDocs)
- Reported make and model: BENSEN B-8M
- Registry model: [Everest-Bensen B-8M](https://openairdocs.org/model/everest-bensen-b-8m) (registry code 05602LW) (OpenAirDocs)
- Registry engine: [Mcculloch 4318A&E/0-100](https://openairdocs.org/engine/mcculloch-4318a-e-0-100) (registry code 43101, reciprocating) (OpenAirDocs)
- Category: Gyroplane, 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 19810912058699A](https://openairdocs.org/incident/19810912058699A), Sep 12, 1981: Amtrbx BENSENB8M, Manitowoc, WI, Substantial damage. Gyrocopter crashed during emergency landing after engine failure.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.