# NTSB DEN70F0008: Bell 47G3B1, N8541F, Broomfield, CO, June 14, 1969

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: June 14, 1969
- Place: Broomfield, CO · BROOMFIELD, CO
- Location: 39.9205° N, 105.0867° W: Placed by OpenAirDocs: center of Broomfield, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.9205&lon=-105.0867&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 1 minor
- Status: Completed, report August 6, 1969
- Report: Brief approved by the director
- NTSB case key (mKey): 174821
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN70F0008
- Page: https://openairdocs.org/ntsb/DEN70F0008

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1779  69/6/14    BROOMFIELD,COLO     BELL 47G3B1         CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 26, 1709
        TIME - 1504                    N8541F              PX-  0  1  0  TEST                      TOTAL HOURS, 350 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - JEFFERSON COUNTY
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ROLL OVER                                                TAKEOFF: VERTICAL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
        REMARKS- LIFTED OFF WITH TIE-DOWN CHAIN SECURED TO SKID.
```

## Aircraft

- Registration: [N8541F](https://openairdocs.org/deregistered/N8541F-2018-02-21), registration cancelled 2018-02-21, S/N 6532, built 1966 (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: Jefferson County

## Other investigations on N8541F (1)

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 DEN67A0049](https://openairdocs.org/ntsb/DEN67A0049), Mar 1, 1967: Bell 47G3B1 (N8541F), Estes Park, CO, 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.

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