# NTSB SEA77DYP20: Piper PA-20, N7481K, Moses Lake, WA, March 28, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 28, 1977
- Place: Moses Lake, WA · MOSES LAKE, WA
- Location: 47.1279° N, 119.2764° W: Placed by OpenAirDocs: center of Moses Lake, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.1279&lon=-119.2764&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report April 18, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 157608
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA77DYP20
- Page: https://openairdocs.org/ntsb/SEA77DYP20

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0483  77/3/28    MOSES LAKE,WA       PIPER PA-20         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 47, 436
        TIME - 1310                    N7481K              PX-  0  0  2  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 161 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - GRANT COUNTY
        DEPARTURE POINT             INTENDED DESTINATION
          YAKIMA,WA                   MOSES LAKE,WA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER LEVEL OFF
        FACTOR(S)
           AIRFRAME - LANDING GEAR: TAILWHEEL ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        REMARKS- LNDD TAIL FIRST.TAILWHEEL SPRING BOLT FAILED.
```

## Aircraft

- Registration: [N7481K](https://openairdocs.org/aircraft/N7481K), registered now, S/N 20-396, built 1950 (OpenAirDocs)
- Reported make and model: PIPER PA-20
- Registry model: [Piper PA-20-135](https://openairdocs.org/model/piper-pa-20-135) (registry code 7102010) (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
- Airport: Grant County

## 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 19770328005309A](https://openairdocs.org/incident/19770328005309A), Mar 28, 1977: Piper PA20135, Moses Lake, WA, Substantial damage. Lndd tail first. Tailwheel spring bolt failed.

## Other investigations on N7481K (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 ANC86LA132](https://openairdocs.org/ntsb/ANC86LA132), Aug 20, 1986: Piper PA-20 (N7481K), Two Lakes, 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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.