# NTSB MKC70A0009: Bell 47G 2, N28208, Keystone, SD, September 4, 1969

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: September 4, 1969
- Place: Keystone, SD · KEYSTONE, SD
- Location: 43.8949° N, 103.4268° W: Placed by OpenAirDocs: center of Keystone, SD, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.8949&lon=-103.4268&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 3 fatal
- Status: Completed, report December 22, 1969
- Report: Brief approved by the director
- NTSB case key (mKey): 158309
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC70A0009
- Page: https://openairdocs.org/ntsb/MKC70A0009

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2592   69/9/4  NR.KEYSTONE,S DAK     BELL 47G 2          CR-  1  0  0  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1510                    N28208              PX-  2  0  0  OTHER                     AGE 36, 1884 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            860 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         KEYSTONE,S DAK              KEYSTONE,S DAK
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           COLLIDED WITH: TREES                                     LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           MISCELLANEOUS ACTS,CONDITIONS - FUEL EXHAUSTION
           TERRAIN - HIGH OBSTRUCTIONS
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- SIGHT-SEEING FLTS.
```

## Aircraft

- Registration: [N28208](https://openairdocs.org/aircraft/N28208), registered now, S/N 78-30898 (OpenAirDocs)
- Reported make and model: BELL 47G 2
- Registry model: [Bellanca 17-30A](https://openairdocs.org/model/bellanca-17-30a) (registry code 1220433) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed

## Other investigations on N28208 (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 CHI86LA227](https://openairdocs.org/ntsb/CHI86LA227), Sep 18, 1986: Bellanca 17-30A (N28208), Grosse Ile, MI, 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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