# NTSB MKC72FTK19: Bell 47G-2, N939B, Rapid City, SD, January 16, 1972

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: January 16, 1972
- Place: Rapid City, SD · RAPID CITY, SD
- Location: 44.0805° N, 103.2310° W: Placed by OpenAirDocs: center of Rapid City, SD, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.0805&lon=-103.2310&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 2 serious
- Status: Completed, report September 27, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 165228
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC72FTK19
- Page: https://openairdocs.org/ntsb/MKC72FTK19

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0271  72/1/16    RAPID CITY,S DAK    BELL 47G-2          CR-  0  1  0  COMMERCIAL                COMMERCIAL, AGE 25, 1358
        TIME - 0845                    N939B               PX-  0  1  0  POWER/PIPELINE            TOTAL HOURS, 960 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          RAPID CITY,S DAK            HOT SPRINGS,S DAK
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: WIRES/POLES                               IN FLIGHT: OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER IN-FLIGHT DECISIONS OR PLANNING
           WEATHER - DOWNDRAFT,UPDRAFTS
           MISCELLANEOUS ACTS,CONDITIONS - UNWARRANTED LOW FLYING
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY PHONE
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        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                  TYPE OF WEATHER CONDITIONS
          NONE                                                     VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- ENCTRD DNDRFT LEE SIDE RDG AT LOW ALT,SETTLED W PWR INTO LINES,CAME TO REST IN TREE.
```

## Aircraft

- Registration: [N939B](https://openairdocs.org/deregistered/N939B-1988-09-28), registration cancelled 1988-09-28, S/N 670 (OpenAirDocs)
- Reported make and model: BELL 47G-2
- Registry model: [Bell 47G](https://openairdocs.org/model/bell-47g) (registry code 1181002) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

## Other investigations on N939B (3)

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 MKC78FA065](https://openairdocs.org/ntsb/MKC78FA065), Aug 18, 1978: Bell 47-G2 (N939B), Branson, MO, destroyed, 3 fatal
- [NTSB MKC74FCG06](https://openairdocs.org/ntsb/MKC74FCG06), Aug 12, 1973: Bell 47G-2 (N939B), Branson, MO, substantial damage
- [NTSB FTW66A0087](https://openairdocs.org/ntsb/FTW66A0087), Apr 4, 1966: Bell 47G-2 (N939B), Billings, OK, 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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