# NTSB ANC71DAA23: Dehavilland DHC-6, N512AR, Prudhoe Bay, AK, December 1, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 1, 1970
- Place: Prudhoe Bay, AK · PRUDHOE BAY, AK
- Location: 70.2553° N, 148.3372° W: Placed by OpenAirDocs: center of Prudhoe Bay, AK, within about 11 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=70.2553&lon=-148.3372&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report September 10, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 159163
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC71DAA23
- Page: https://openairdocs.org/ntsb/ANC71DAA23

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4315   70/12/1   PRUDHOE BAY,ALAS    DEHAVILLAND DHC-6   CR-  0  0  2  INSTRUCTIONAL             AIRLINE TRANSPORT, AGE
        TIME - 1151                    N512AR              PX-  0  0  0  DUAL                      56, 12312 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            1627 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - PRUDHOE BAY
        DEPARTURE POINT             INTENDED DESTINATION
          PRUDHOE BAY,ALAS            PRUDHOE BAY,ALAS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           UNDERSHOOT                                               LANDING: FINAL APPROACH
           COLLIDED WITH: OBJECT                                    LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           DUAL STUDENT - MISUNDERSTANDING OF ORDERS OR INSTRUCTIONS
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
        REMARKS- STUDENT STARTED GO-AROUND INSTR REDUCED PWR.STUDENT THOUGHT I/P HAD CONTROL.HIT RNWY THRESHOLD.
```

## Aircraft

- Registration: [N512AR](https://openairdocs.org/aircraft/N512AR), registered now, S/N 59, built 1967 (OpenAirDocs)
- Reported make and model: DEHAVILLAND DHC-6
- Registry model: [Dehavilland DHC-6-200](https://openairdocs.org/model/dehavilland-dhc-6-200) (registry code 2802620) (OpenAirDocs)
- Registry engine: [Pratt & Whitney Canada PT6A-27 series](https://openairdocs.org/engine/pratt-whitney-canada-pt6a-27-series) (registry code 52247, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Engines: turbo prop
- Damage: Substantial damage
- Airport: Prudhoe Bay

## Other investigations on N512AR (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 ANC72DAA27](https://openairdocs.org/ntsb/ANC72DAA27), Mar 31, 1972: Dehavilland DHC-6 (N512AR), Prudhoe Bay, 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.

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