# NTSB MKC79DCG59: Bensen Gyro, N47814, Mountain Grove, MO, July 15, 1979

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 15, 1979
- Place: Mountain Grove, MO · MOUNTAIN GROVE, MO
- Location: 37.1342° N, 92.2663° W: Placed by OpenAirDocs: center of Mountain Grove, MO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.1342&lon=-92.2663&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 4, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 135035
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC79DCG59
- Page: https://openairdocs.org/ntsb/MKC79DCG59

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1367  79/7/15    MOUNTAIN GROVE,MO   BENSEN GYRO         CR-  0  0  1  NONCOMMERCIAL             STUDENT, AGE 35, 59 TOTAL
        TIME - 1615                    N47814              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  HOURS, UNK/NR IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          MOUNTAIN GROVE,MO           LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: MUSH                                              IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
        FACTOR(S)
           PILOT IN COMMAND - DIVERTED ATTENTION FROM OPERATION OF AIRCRAFT
```

## Aircraft

- Registration: [N47814](https://openairdocs.org/deregistered/N47814-2015-12-12), registration cancelled 2015-12-12, S/N 407582860, built 1974 (OpenAirDocs)
- Reported make and model: BENSEN GYRO
- Registry model: [Bensen-Bates B-8M](https://openairdocs.org/model/bensen-bates-b-8m) (registry code 1300812) (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 19790715017269A](https://openairdocs.org/incident/19790715017269A), Jul 15, 1979: Amtrbx BENSENB8M, Mountain Grove, MO, Substantial damage. Allowed airspeed to decay. Unable to stop sink rate. Hit hard in farm field and rolled over.

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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