# NTSB ANC71DAG81: Piper PA-22, N8520D, Port Alswrth, AK, March 27, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 27, 1971
- Place: Port Alswrth, AK · PORT ALSWRTH, AK
- Location: 60.1578° N, 154.3406° W: Placed by OpenAirDocs: center of Port Alsworth, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=60.1578&lon=-154.3406&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report December 16, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 160562
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC71DAG81
- Page: https://openairdocs.org/ntsb/ANC71DAG81

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1050  71/3/27    PORT ALSWRTH,ALAS   PIPER PA-22         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 34, 132
        TIME - 1600                    N8520D              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 85 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          NIKABUNA LAKE,ALAS          PORT ALSWORTH,ALAS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: SNOWBANK                                  TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - SELECTED UNSUITABLE TERRAIN
           PILOT IN COMMAND - PREMATURE LIFT-OFF
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
        REMARKS- SNOW CVRD FROZEN LAKE WITH SEVERAL SNOW DRIFTS.ACFT AT MAS GWT. HIT SNOWBANK AT END OF LAKE.
```

## Aircraft

- Registration: [N8520D](https://openairdocs.org/deregistered/N8520D-2022-10-01), registration cancelled 2022-10-01, S/N 22-5748 (OpenAirDocs)
- Reported make and model: PIPER PA-22
- Registry model: [Piper PA-20](https://openairdocs.org/model/piper-pa-20) (registry code 7102002) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N8520D (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 ANC68F0055](https://openairdocs.org/ntsb/ANC68F0055), Sep 22, 1967: Piper PA-22 (N8520D), Kenai, 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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