# NTSB ANC75DAG07: Piper PA-18, N9908D, Tyonek, AK, July 27, 1974

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 27, 1974
- 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: 2 uninjured
- Status: Completed, report December 4, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 138776
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC75DAG07
- Page: https://openairdocs.org/ntsb/ANC75DAG07

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3355  74/7/27  NR.TYONEK,ALAS        PIPER PA-18         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 26, 200
        TIME - 1030                    N9908D              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 150 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          ANCHORAGE,ALAS             TYONEK,ALAS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           COLLIDED WITH: DIRT BANK                                 LANDING: ROLL
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: TAILWHEEL ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        REMARKS- TAIL WHEEL SPRING ATTACH BRACKET BOLT FAILED.
```

## Aircraft

- Registration: [N9908D](https://openairdocs.org/aircraft/N9908D), registered now, S/N 18-6949, built 1959 (OpenAirDocs)
- Reported make and model: PIPER PA-18
- Registry model: [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150) (registry code 7101828) (OpenAirDocs)
- Registry engine: [Lycoming O-320-B2B](https://openairdocs.org/engine/lycoming-o-320-b2b) (registry code 42138, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## 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 19740727029529A](https://openairdocs.org/incident/19740727029529A), Jul 27, 1974: Piper PA18150, Tyonek, AK, Substantial damage. Tail wheel spring attach bracket bolt failed.

## Other investigations on N9908D (2)

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 ANC02LA009](https://openairdocs.org/ntsb/ANC02LA009), Jan 12, 2002: Piper PA-18 (N9908D), Anchorage, AK, substantial damage. Probable cause: The flight instructor's inadequate supervision of the flight. Factors in the accident were the student's failure to maintain directional control of the airplane during the landing roll, icy runway…
- [NTSB ANC75AA083](https://openairdocs.org/ntsb/ANC75AA083), May 15, 1975: Piper PA-18 (N9908D), Selawik, 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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