# NTSB ANC73AA006: Bell 47G-2, N959, Deadhorse, AK, July 18, 1972

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 18, 1972
- Place: Deadhorse, AK · DEADHORSE, AK
- Location: 70.2056° N, 148.5117° W: Placed by OpenAirDocs: center of Deadhorse, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=70.2056&lon=-148.5117&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report March 19, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 168411
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC73AA006
- Page: https://openairdocs.org/ntsb/ANC73AA006

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3268  72/7/18    DEADHORSE,ALAS      BELL 47G-2          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 41, 2164
        TIME - 1945                    N959                PX-  0  0  2  AIR TAXI-PASSG            TOTAL HOURS, UNK/NR IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - DEADHORSE
        DEPARTURE POINT             INTENDED DESTINATION
          BEECHEY POINT,ALAS          DEADHORSE,ALAS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: OTHER
           ROLL OVER                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        FACTOR(S)
           WEATHER - LOW CEILING
           WEATHER - FOG
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OBSCURATION                                               200
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          1/4 MILE OR LESS                                         NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          FOG                                                       51
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          IFR                                                      NONE
        REMARKS- LOST NAV AIDS DUE PWR OUTAGE AT DEST.HAD TO FOLLOW ROAD IN POOR VIS.FLOATS HIT GRND IN DWNWIND TRN
```

## Aircraft

- Registration: [N959](https://openairdocs.org/aircraft/N959), registered now, S/N 1501, built 1956 (OpenAirDocs)
- Reported make and model: BELL 47G-2
- Registry model: [Bell 47G-2](https://openairdocs.org/model/bell-47g-2) (registry code 1181008) (OpenAirDocs)
- Registry engine: [Lycoming VO-435 series](https://openairdocs.org/engine/lycoming-vo-435-series) (registry code 41525, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Deadhorse

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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