# NTSB DEN71FXT10: Piper PA-20, N7414K, Evanston, WY, September 15, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 15, 1970
- Place: Evanston, WY · EVANSTON, WY
- Location: 41.2594° N, 110.9643° W: Placed by OpenAirDocs: center of Evanston, WY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.2594&lon=-110.9643&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report July 15, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 158482
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN71FXT10
- Page: https://openairdocs.org/ntsb/DEN71FXT10

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3948  70/9/15    EVANSTON,WYO        PIPER PA-20         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 35, 850
        TIME - 1835                    N7414K              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 21 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          EVANSTON,WYO                OGDEN,UT
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: VALVE ASSEMBLIES
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           TERRAIN - ROUGH/UNEVEN
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- NR 3 EXHAUST VALVE FAILED,HEAD IMBEDDED IN PISTON.LNDD ON WINDING DIRT ROAD.
```

## Aircraft

- Registration: [N7414K](https://openairdocs.org/deregistered/N7414K-2017-06-07), registration cancelled 2017-06-07, S/N 20-324, built 1950 (OpenAirDocs)
- Reported make and model: PIPER PA-20
- Registry model: [Piper PA-20](https://openairdocs.org/model/piper-pa-20) (registry code 7102002) (OpenAirDocs)
- Registry engine: [Lycoming 0-290 series](https://openairdocs.org/engine/lycoming-0-290-series) (registry code 41506, 4 cycle) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N7414K (3)

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 ANC10LA084](https://openairdocs.org/ntsb/ANC10LA084), Sep 11, 2010: Piper PA-20 (N7414K), South Naknek, AK, substantial damage. Probable cause: The loss of engine power during cruise flight for an undetermined reason, resulting in an emergency landing and collision with terrain.
- [NTSB LAX66D0253](https://openairdocs.org/ntsb/LAX66D0253), Jan 17, 1966: Piper PA-20 (N7414K), Montello, NV, substantial damage
- [NTSB UNK64X4137](https://openairdocs.org/ntsb/UNK64X4137), Sep 25, 1964: Piper PA20 (N7414K), Woods Cross, UT, 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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