# NTSB OAK75DVA39: Bensen B8M, N8973, Madera, CA, January 1, 1975

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: January 1, 1975
- Place: Madera, CA · MADERA, CA
- Location: 36.9662° N, 120.0859° W: Placed by OpenAirDocs: center of Madera, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.9662&lon=-120.0859&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report January 13, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 147040
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK75DVA39
- Page: https://openairdocs.org/ntsb/OAK75DVA39

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0093   75/1/1    MADERA,CA           BENSEN B8M          CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1430                    N8973               PX-  0  0  0  PRACTICE                  AGE 27, 1601 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            5 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - MADERA
        DEPARTURE POINT             INTENDED DESTINATION
          MADERA,CA                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            LANDING: FINAL APPROACH
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - IGNITION SYSTEM: MAGNETOS
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        FACTOR(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- REASON FOR MAG FAILURE NOT DETERMINED.
```

## Aircraft

- Registration: N8973 (not matched to a registry record)
- Reported make and model: BENSEN B8M
- Category: Gyroplane, amateur-built
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Madera

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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