# NTSB ANC79FA004: Dehavnd Can DHC-6, N4048B, Barrow, AK, October 13, 1978

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: October 13, 1978
- Place: Barrow, AK · BARROW, AK
- Location: 71.2644° N, 156.7537° W: Placed by OpenAirDocs: center of Utqiaġvik, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=71.2644&lon=-156.7537&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal, 1 serious
- Status: Completed, report April 24, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 138090
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC79FA004
- Page: https://openairdocs.org/ntsb/ANC79FA004

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4357  78/10/13   BARROW,AK           DEHAVND CAN DHC-6   CR-  1  0  0  COMMERCIAL                AIRLINE TRANSPORT, AGE
        TIME - 1644                    N4048B              PX-  0  1  0  AIR TAXI-PASSG            32, 4302 TOTAL HOURS, 892
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - POST/ROGERS MEM'L
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          BARROW,AK                   BARROW,AK                    ANAKTUVUK PASS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL                                                    LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
           AIRFRAME - FLIGHT CONTROL SURFACES: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY INSTALLED
           PILOT IN COMMAND - FAILED TO USE OR INCORRECTLY USED MISC.EQUIPMENT
           MISCELLANEOUS ACTS,CONDITIONS - ANTI-ICING/DEICING EQUIPMENT-IMPROPER OPERATION OF/OR FAILED TO USE
           PILOT IN COMMAND - MISUSED OR FAILED TO USE FLAPS
        FACTOR(S)
           PERSONNEL - OPERATIONAL SUPERVISORY PERSONNEL: INADEQUATE FLIGHT TRAINING-PROCEDURES
           PERSONNEL - OPERATIONAL SUPERVISORY PERSONNEL: DEFICIENCY,COMPANY MAINTAINED EQPMT,SERVICES,REGULATION
           WEATHER - ICING CONDITIONS-INCLUDES SLEET,FREEZING RAIN,ETC.
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY RADIO
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  900
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     SNOW
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  RELATIVE BEARING OF WIND
          NONE                                                     RIGHT QUARTERING HEAD WIND 023-067 DEGREES
        TEMPERATURE-F                                            WIND DIRECTION-DEGREES
           26                                                      270
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           7                                                       VFR
        TYPE OF FLIGHT PLAN
          VFR
         FIRE AFTER IMPACT
        REMARKS- IMPROPERLY INSTALLED DE-ICE BOOTS ON HORIZONTAL STABILIZER.
```

## Aircraft

- Registration: [N4048B](https://openairdocs.org/deregistered/N4048B-2017-05-22), registration cancelled 2017-05-22, S/N 125, built 1968 (OpenAirDocs)
- Reported make and model: DEHAVND CAN DHC-6
- Registry model: [Dehavilland DHC-6 TWIN OTTER](https://openairdocs.org/model/dehavilland-dhc-6-twin-otter) (registry code 2802606) (OpenAirDocs)
- Registry engine: [Pratt & Whitney Canada PT6A-60A](https://openairdocs.org/engine/pratt-whitney-canada-pt6a-60a) (registry code 52043, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Engines: turbo prop
- Damage: Substantial damage
- Airport: Post/Rogers Mem'L

## 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 19781013043909A](https://openairdocs.org/incident/19781013043909A), Oct 13, 1978: Dhav DHC6/, Barrow, AK, Substantial damage. Improperly installed de-ice boots on horizontal stabilizer.

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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