# NTSB MKC70I0081: Bell 47G3B1, N7924S, Hill City, SD, August 2, 1969

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: August 2, 1969
- Place: Hill City, SD · HILL CITY, SD
- Location: 43.9317° N, 103.5697° W: Placed by OpenAirDocs: center of Hill City, SD, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.9317&lon=-103.5697&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report September 11, 1969
- Report: Brief approved by the director
- NTSB case key (mKey): 164061
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC70I0081
- Page: https://openairdocs.org/ntsb/MKC70I0081

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
5-0019   69/8/2    HILL CITY,S DAK     BELL 47G3B1         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 34, 3801
        TIME - 1213                    N7924S              PX-  0  0  2  ASSOC FIRE CTL ACTIVITY   TOTAL HOURS, 1826 IN
                                       DAMAGE-MINOR        OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        CLASSIFIED AS INCIDENT
        NAME OF AIRPORT - HELITACK BASE
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: WIRES/POLES                               TAKEOFF: INITIAL CLIMB
```

## Aircraft

- Registration: [N7924S](https://openairdocs.org/deregistered/N7924S-2019-02-25), registration cancelled 2019-02-25, S/N 6595, 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: Minor damage
- Airport: Helitack Base

## Other investigations on N7924S (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 CEN13LA395](https://openairdocs.org/ntsb/CEN13LA395), Jul 6, 2013: Bell 47G-3B-1 (N7924S), Plover, WI, substantial damage. Probable cause: The pilot’s failure to maintain proper engine rpm, which resulted in a high rate of descent and ground impact.
- [NTSB CHI76FEV02](https://openairdocs.org/ntsb/CHI76FEV02), Jul 11, 1975: Bell 47G (N7924S), Forsyth, IL, 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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