# NTSB ANC80DAG04: Pilatus PC-6, N4912, Sparrevohn, AK, October 1, 1979

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: October 1, 1979
- Place: Sparrevohn, AK · SPARREVOHN, AK
- Location: 61.1031° N, 155.5775° W: Placed by OpenAirDocs: center of Sparrevohn Long Range Radar Site, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=61.1031&lon=-155.5775&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report October 31, 1979
- Report: Brief approved by the director
- NTSB case key (mKey): 133958
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC80DAG04
- Page: https://openairdocs.org/ntsb/ANC80DAG04

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2365   79/10/1 NR.SPARREVOHN,AK      PILATUS PC-6        CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 41, 4300
        TIME - 0900                    N4912               PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 140 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          RED DEVIL,AK.               ANCHORAGE,AK.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER IN-FLIGHT DECISIONS OR PLANNING
        FACTOR(S)
           WEATHER - DOWNDRAFT,UPDRAFTS
        WEATHER BRIEFING - BRIEFING RECEIVED-METHOD UNKNOWN
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          UNKNOWN/NOT REPORTED                                      8000
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      41
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
           90                                                       20
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
         FIRE AFTER IMPACT
        REMARKS- ENCTRD SVR DWNDFTS DRG FLT OVR MTN PASS.WND GUSTING 40 KTS.
```

## Aircraft

- Registration: [N4912](https://openairdocs.org/deregistered/N4912-1981-10-15), registration cancelled 1981-10-15, S/N 544 (OpenAirDocs)
- Reported make and model: PILATUS PC-6
- Registry model: [Pilatus PC-6/350](https://openairdocs.org/model/pilatus-pc-6-350) (registry code 7090114) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

## 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 19791001026729A](https://openairdocs.org/incident/19791001026729A), Oct 1, 1979: Pilats PC6, Sparrevohn, AK, Destroyed. Hit downdraft flying through Pass. Unable to pull out. Hit ground. Severe low level turbulence.

## Other investigations on N4912 (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 ANC72AA041](https://openairdocs.org/ntsb/ANC72AA041), Apr 11, 1972: Pilatus PC-6 (N4912), Nome, 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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