# NTSB DEN67A0048: Bell 47G3B1, N8537F, Riverton, WY, February 21, 1967

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 21, 1967
- Place: Riverton, WY · RIVERTON, WY
- Location: 43.0263° N, 108.3813° W: Placed by OpenAirDocs: center of Riverton, WY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.0263&lon=-108.3813&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 21, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 119102
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN67A0048
- Page: https://openairdocs.org/ntsb/DEN67A0048

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0079  67/2/21    RIVERTON,WYO        BELL 47G3B1         CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 30, 1400
        TIME - 0830                    N8537F              PX-  0  0  0  TEST                      TOTAL HOURS, 800 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - RIVERTON
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            LANDING: TRAFFIC PATTERN-CIRCLING
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
           PILOT IN COMMAND - IMPROPER LEVEL OFF
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- PLT LANDED ACFT ON AFT PART OF SKIDS. ROTOR BLADE STRUCK TAIL BOOM.
```

## Aircraft

- Registration: [N8537F](https://openairdocs.org/deregistered/N8537F-2014-11-24), registration cancelled 2014-11-24, S/N 3390, built 1965 (OpenAirDocs)
- Reported make and model: BELL 47G3B1
- Registry model: [Bell 47G-3B-1](https://openairdocs.org/model/bell-47g-3b-1) (registry code 1181028) (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: Riverton

## Other investigations on N8537F (5)

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.

- [NTSB SEA97LA158](https://openairdocs.org/ntsb/SEA97LA158), Jul 5, 1997: Bell 47G-3B-1 (N8537F), Roosevelt, UT, substantial damage. Probable cause: the pilot's failure to maintain directional control. Wind gusts were a factor.
- [NTSB DEN80DTM01](https://openairdocs.org/ntsb/DEN80DTM01), Oct 1, 1979: Bell 47G3B1 (N8537F), Torrey, UT, substantial damage
- [NTSB SEA69A0008](https://openairdocs.org/ntsb/SEA69A0008), Jul 23, 1968: Bell 47G3B1 (N8537F), North Fork, ID, destroyed, 1 fatal
- [NTSB DEN67A0052](https://openairdocs.org/ntsb/DEN67A0052), Mar 10, 1967: Bell 47G3B1 (N8537F), Cody, WY, destroyed
- [NTSB DEN66A0025](https://openairdocs.org/ntsb/DEN66A0025), Oct 5, 1965: Bell 47G3B1 (N8537F), Salt Lake City, UT, destroyed

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.