# NTSB DEN76FTE94: Bell 47G3B2, N4074G, Aspen, CO, August 24, 1976

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: August 24, 1976
- Place: Aspen, CO · ASPEN, CO
- Location: 39.1952° N, 106.8368° W: Placed by OpenAirDocs: center of Aspen, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.1952&lon=-106.8368&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 1 uninjured
- Status: Completed, report October 6, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 149780
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN76FTE94
- Page: https://openairdocs.org/ntsb/DEN76FTE94

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2602  76/8/24  NR.ASPEN,CO           BELL 47G3B2         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 26, 2278
        TIME - 0830                    N4074G              PX-  0  1  0  OTHER                     TOTAL HOURS, 570 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          GUNNISON,CO                ASPEN,CO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: OTHER
           ROLL OVER                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
        FACTOR(S)
           WEATHER - HIGH DENSITY ALTITUDE
           TERRAIN - ROUGH/UNEVEN
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      48
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          315                                                       10
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
         FIRE AFTER IMPACT
        REMARKS- RADIOMETRIC AERIAL SURVEY.NO REASON FOUND FOR LOSS OF POWER.D/A 14000FT.
```

## Aircraft

- Registration: [N4074G](https://openairdocs.org/aircraft/N4074G), registered now, S/N 6704 (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: Destroyed

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19760824028029A](https://openairdocs.org/incident/19760824028029A), Aug 24, 1976: Bell 47G3B2, Aspen, CO, Destroyed. Radiometric aerial survey. No reason found for loss of power.d/a 14000FT.

## Other investigations on N4074G (2)

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 DEN70D0097](https://openairdocs.org/ntsb/DEN70D0097), Jul 17, 1969: Bell 47G3B2 (N4074G), Breckenridge, CO, substantial damage
- [NTSB DEN69A0004](https://openairdocs.org/ntsb/DEN69A0004), Jul 29, 1968: Bell 47G3B2 (N4074G), Aspen, CO, substantial damage

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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