# NTSB CHI73FEC03: Bensen B8M, N64808, Trenton, MI, July 30, 1972

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 30, 1972
- Place: Trenton, MI · TRENTON, MI
- Location: 42.1402° N, 83.1924° W: Placed by OpenAirDocs: center of Trenton, MI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.1402&lon=-83.1924&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 26, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 167775
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI73FEC03
- Page: https://openairdocs.org/ntsb/CHI73FEC03

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0526  72/7/30    TRENTON,MICH        BENSEN B8M          CR-  0  0  1  NONCOMMERCIAL             STUDENT, AGE 45, 30 TOTAL
        TIME - 1745                    N64808              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  HOURS, ALL IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - GROSSE ILLE
        DEPARTURE POINT             INTENDED DESTINATION
          TRENTON,MICH                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           DITCHING                                                 LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - EXHAUST SYSTEM: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY INSTALLED
           MISCELLANEOUS ACTS,CONDITIONS - BOGUS PART
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (OWNER PERSONNEL)
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON WATER
        REMARKS- PLT INSTALLED NON-CERTIFICATED EXHAUST SYSTEM.FIRST FLT SINCE.LND IN SHALLOW OPEN WATER.
```

## Aircraft

- Registration: [N64808](https://openairdocs.org/deregistered/N64808-1989-09-19), registration cancelled 1989-09-19, S/N 38120 (OpenAirDocs)
- Reported make and model: BENSEN B8M
- Registry model: [Bensen-Schroeder BENSEN B-8M](https://openairdocs.org/model/bensen-schroeder-bensen-b-8m) (registry code 1300805) (OpenAirDocs)
- Category: Gyroplane, amateur-built
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Grosse Ille

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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