# NTSB NYC81FGM20: Bensen B8M, N8496T, Greenville, PA, June 7, 1981

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: June 7, 1981
- Place: Greenville, PA · GREENVILLE, PA
- Location: 41.4051° N, 80.3838° W: Placed by OpenAirDocs: center of Greenville, PA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.4051&lon=-80.3838&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report September 3, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 125263
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC81FGM20
- Page: https://openairdocs.org/ntsb/NYC81FGM20

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2022   81/6/7    GREENVILLE,PA       BENSEN B8M          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 39, 311
        TIME - 1845                    N8496T              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 17 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - GREENVILLE MUNI
        DEPARTURE POINT             INTENDED DESTINATION
          GREENVILLE,PA               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            LANDING: TRAFFIC PATTERN-CIRCLING
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: CYLINDER ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - OVERHEATED
           PILOT IN COMMAND - IMPROPER LEVEL OFF
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - DOWNWIND
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
        REMARKS- MCCULLOUCH 4318AX ENG,NO 4 PISTON GALLED TO CYL,SPARK PLUG OVRHEATED.OTR COWLING RCMDD FOR COOLING
```

## Aircraft

- Registration: [N8496T](https://openairdocs.org/deregistered/N8496T-1991-03-27), registration cancelled 1991-03-27, S/N 1 (OpenAirDocs)
- Reported make and model: BENSEN B8M
- Registry model: [Gray Donald E B-8M](https://openairdocs.org/model/gray-donald-e-b-8m) (registry code 13021ED) (OpenAirDocs)
- Category: Gyroplane, amateur-built
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Greenville Muni

## 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 19810607032629A](https://openairdocs.org/incident/19810607032629A), Jun 7, 1981: Amtrbx BENSENB8M, Greenville, PA, Substantial damage. Engine malfunctioned on first flight test of gyrocopter. Crash occurred during emergency landing.

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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