# NTSB UNK64X0425: Piper PA20, N4946M, Glendo, WY, February 1, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 1, 1964
- Place: Glendo, WY · GLENDO, WY
- Location: 42.5049° N, 105.0250° W: Placed by OpenAirDocs: center of Glendo, WY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=42.5049&lon=-105.0250&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Brief approved by the director
- NTSB case key (mKey): 185641
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X0425
- Page: https://openairdocs.org/ntsb/UNK64X0425

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0185   64/2/1    GLENDO WYO          PIPER PA20          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 33, 162
        TIME - 1100                    N4946M              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 139 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 LANDING: ROLL
           GEAR COLLAPSED                                           LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER COMPENSATION FOR WIND CONDITIONS
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
           WEATHER - UNFAVORABLE WIND CONDITIONS
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
```

## Aircraft

- Registration: [N4946M](https://openairdocs.org/deregistered/N4946M-2021-05-02), registration cancelled 2021-05-02, S/N 20-637 (OpenAirDocs)
- Reported make and model: PIPER PA20
- 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 N4946M (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 ANC93LA117](https://openairdocs.org/ntsb/ANC93LA117), Jul 14, 1993: Piper PA-20 (N4946M), Circle Hot Spri, AK, substantial damage. Probable cause: THE PILOT-IN-COMMAND'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL DURING TAXI. FACTOR IS THE ROUGH/RUTTED CONDITION OF THE AIRSTRIP.
- [NTSB ANC83FAA01](https://openairdocs.org/ntsb/ANC83FAA01), Oct 8, 1982: Piper PA-20-A (N4946M), Phillips Field, 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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