# NTSB IAD71DIJ22: Bensen B8M, N4682S, Hamlin, WV, May 16, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 16, 1971
- Place: Hamlin, WV · HAMLIN, WV
- Location: 38.2779° N, 82.1020° W: Placed by OpenAirDocs: center of Hamlin, WV, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.2779&lon=-82.1020&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report January 11, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 161621
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD71DIJ22
- Page: https://openairdocs.org/ntsb/IAD71DIJ22

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1585  71/5/16    HAMLIN,W VA         BENSEN B8M          CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1500                    N4682S              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  AGE 45, 6000 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            1 IN TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          HAMLIN,W VA                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE CONTROLS: THROTTLE-POWER LEVER ASSEMBLIES
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- THROTTLE ARM CNCT TO CARB SLIPPED,FULL ENG PWR NOT DVLPD.PLT SAID HE LOST CTL DURG LO AIRSPEED TRN
```

## Aircraft

- Registration: [N4682S](https://openairdocs.org/deregistered/N4682S-2012-08-01), registration cancelled 2012-08-01, S/N 101, built 1965 (OpenAirDocs)
- Reported make and model: BENSEN B8M
- Registry model: [Bensen B-8M](https://openairdocs.org/model/bensen-b-8m) (registry code 1300516) (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

## Other investigations on N4682S (1)

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.

- [NTSB MIA66A0116](https://openairdocs.org/ntsb/MIA66A0116), Apr 7, 1966: Bensen B8M (N4682S), Wilmington, NC, substantial damage

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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