# NTSB ANC78DA004: Bell 206-L, N403EH, Deadhorse, AK, November 30, 1977

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: November 30, 1977
- 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: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor, 1 uninjured
- Status: Completed, report March 3, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 143946
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC78DA004
- Page: https://openairdocs.org/ntsb/ANC78DA004

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4087  77/11/30   DEADHORSE,AK        BELL 206-L          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 31, 4240
        TIME - 0935                    N403EH              PX-  0  0  1  AIR TAXI-PASSG            TOTAL HOURS, 1001 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, INSTRUMENT RATED.
        NAME OF AIRPORT - DEADHORSE
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          PUMP STATION NO.1           RETURN                       VALVE NO.1
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ROLL OVER                                                LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INITIATED FLIGHT IN ADVERSE WEATHER CONDITIONS
           PILOT IN COMMAND - SPATIAL DISORIENTATION
           MISCELLANEOUS ACTS,CONDITIONS - WHITEOUT
        FACTOR(S)
           WEATHER - FOG
           WEATHER - SNOW
           WEATHER - UNFAVORABLE WIND CONDITIONS
           TERRAIN - SNOW-COVERED
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY PHONE
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          PARTIAL OBSCURATION                                      UNKNOWN/NOT REPORTED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          1 MILE OR LESS                                           SNOW
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  WIND DIRECTION-DEGREES
          BLOWING SNOW                                             230
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           17                                                      BELOW MINIMUMS
        TYPE OF FLIGHT PLAN
          NONE
```

## Aircraft

- Registration: [N403EH](https://openairdocs.org/deregistered/N403EH-2003-03-13), registration cancelled 2003-03-13, S/N 45113 (OpenAirDocs)
- Reported make and model: BELL 206-L
- Registry model: [Bell 206L](https://openairdocs.org/model/bell-206l) (registry code 1181522) (OpenAirDocs)
- Category: Helicopter
- Engines: turbo shaft
- Damage: Substantial damage
- Airport: Deadhorse

## 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 19771130041989A](https://openairdocs.org/incident/19771130041989A), Nov 30, 1977: Bell 206L, Deadhorse, AK, 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.