# NTSB ANC73DAG15: Piper PA-18, N7781D, Tyonek, AK, August 26, 1972

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: August 26, 1972
- Place: Tyonek, AK · TYONEK, AK
- Location: 61.0681° N, 151.1369° W: Placed by OpenAirDocs: center of Tyonek, AK, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=61.0681&lon=-151.1369&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report March 15, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 167857
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC73DAG15
- Page: https://openairdocs.org/ntsb/ANC73DAG15

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3150  72/8/26    TYONEK,ALAS         PIPER PA-18         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 39, 1174
        TIME - 1900                    N7781D              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 874 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          CHAKACHAMNA,ALAS            LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: TREES                                     TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - SELECTED UNSUITABLE TERRAIN
        FACTOR(S)
           TERRAIN - WET,SOFT GROUND
           TERRAIN - HIGH OBSTRUCTIONS
```

## Aircraft

- Registration: [N7781D](https://openairdocs.org/aircraft/N7781D), registered now, S/N 18-5970, built 1957 (OpenAirDocs)
- Reported make and model: PIPER PA-18
- Registry model: [Piper PA-18A 150](https://openairdocs.org/model/piper-pa-18a-150) (registry code 7101837) (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 N7781D (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 ANC82DAG37](https://openairdocs.org/ntsb/ANC82DAG37), Jun 15, 1982: Piper PA-18-150 (N7781D), Near Tyonek, 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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