# NTSB ANC71DAG98: Piper PA-22, N7027D, Tyonek, AK, June 5, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 5, 1971
- 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: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report January 26, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 161472
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC71DAG98
- Page: https://openairdocs.org/ntsb/ANC71DAG98

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1793   71/6/5    TYONEK,ALAS         PIPER PA-22         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 0700                    N7027D              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  AGE 28, 493 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            393 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         UNKNOWN/NOT REPORTED         TYONEK,ALAS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           NOSE OVER/DOWN                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - SELECTED UNSUITABLE TERRAIN
        FACTOR(S)
           TERRAIN - OTHER
        REMARKS- LANDED ON MUD FLAT HIT SOFT SPOT.
```

## Aircraft

- Registration: [N7027D](https://openairdocs.org/aircraft/N7027D), registered now, S/N 22-4921, built 1956 (OpenAirDocs)
- Reported make and model: PIPER PA-22
- Registry model: [Piper PA-22-150](https://openairdocs.org/model/piper-pa-22-150) (registry code 7102210) (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 N7027D (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 ANC03LA002](https://openairdocs.org/ntsb/ANC03LA002), Oct 11, 2002: Piper PA-22 (N7027D), Wasilla, AK, substantial damage. Probable cause: The instructor's inadequate supervision of the pilot-rated dual student, and the dual student's excessive use of brakes during the landing roll, which resulted in the nose over of the airplane.

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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