# NTSB DEN70D0064: Bell 47G3B2, N1486W, Midwest, WY, August 18, 1969

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 18, 1969
- Place: Midwest, WY · MIDWEST, WY
- Location: 43.4115° N, 106.2768° W: Placed by OpenAirDocs: center of Midwest, WY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.4115&lon=-106.2768&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report February 26, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 166430
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN70D0064
- Page: https://openairdocs.org/ntsb/DEN70D0064

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3112  69/8/18    MIDWEST,WYO         BELL 47G3B2         CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 31, 2550
        TIME - 1510                    N1486W              PX-  0  0  1  DEMONSTRATION             TOTAL HOURS, 4 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - TAYLOR RANCH
        DEPARTURE POINT             INTENDED DESTINATION
          BUFFALO,WYO                 CASPER,WYO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           MISCELLANEOUS ACTS,CONDITIONS - SIMULATED CONDITIONS
           PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
```

## Aircraft

- Registration: [N1486W](https://openairdocs.org/deregistered/N1486W-2026-04-09), registration cancelled 2026-04-09, S/N 6730, built 1969 (OpenAirDocs)
- Reported make and model: BELL 47G3B2
- Registry model: [Bell 47G-3B-2](https://openairdocs.org/model/bell-47g-3b-2) (registry code 1181029) (OpenAirDocs)
- Registry engine: [Lycoming TVO-435-GIA](https://openairdocs.org/engine/lycoming-tvo-435-gia) (registry code 41526, turbo-prop) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Taylor Ranch

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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