# NTSB CHI67A0002: Bensen B8M, N7500U, Indianapolis, IN, July 4, 1966

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 4, 1966
- Place: Indianapolis, IN · INDIANAPOLIS, IN
- Location: 39.7684° N, 86.1580° W: Placed by OpenAirDocs: center of Indianapolis, IN, within about 11 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.7684&lon=-86.1580&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 17, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 171134
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI67A0002
- Page: https://openairdocs.org/ntsb/CHI67A0002

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0610   66/7/4    INDIANAPOLIS IND    BENSEN B8M          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 41, 269
        TIME - 1940                    N7500U              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 26 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - SHANK
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
           ROLL OVER                                                LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER LEVEL OFF
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        REMARKS- FLARED TOO HIGH.
```

## Aircraft

- Registration: [N7500U](https://openairdocs.org/deregistered/N7500U-1967-05-04), registration cancelled 1967-05-04, S/N P5269 (OpenAirDocs)
- Reported make and model: BENSEN B8M
- Registry model: [Bensen B-8M](https://openairdocs.org/model/bensen-b-8m) (registry code 1300516) (OpenAirDocs)
- Category: Gyroplane, amateur-built
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Shank

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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