# NTSB UNK64X1396: Cessna 172, N5831A, Dubois, WY, April 20, 1964

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: April 20, 1964
- Place: Dubois, WY · DUBOIS, WY
- Location: 43.5461° N, 109.6480° W: Placed by OpenAirDocs: center of Dubois, WY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.5461&lon=-109.6480&mi=10
- Phase of flight: [Uncontrolled descent](https://openairdocs.org/ntsb-phases/650) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report October 21, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 185062
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X1396
- Page: https://openairdocs.org/ntsb/UNK64X1396

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0438  64/4/20  NR.DUBOIS WYOMING     CESSNA 172          CR-  1  0  0  NONCOMMERCIAL             STUDENT, AGE 42, 50 TOTAL
        TIME - 1414                    N5831A              PX-  0  0  0  PRACTICE                  HOURS, ALL IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS
           PILOT IN COMMAND - BECAME LOST/DISORIENTED
           MISCELLANEOUS ACTS,CONDITIONS - FUEL EXHAUSTION
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
        FACTOR(S)
           WEATHER - LOW CEILING
        WEATHER BRIEFING - UNKNOWN/NOT REPORTED
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        MISSING AIRCRAFT - LATER RECOVERED
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  0
        VISIBILITY AT ACCIDENT SITE                              OBSTRUCTIONS TO VISION AT ACCIDENT SITE
          ZERO                                                     BLOWING SNOW
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          IFR                                                      NONE
        REMARKS- PILOT NOT ENDORSED FOR CROSS COUNTRY FLIGHT.RECOVERY DATE 7/4/64.
```

## Aircraft

- Registration: [N5831A](https://openairdocs.org/deregistered/N5831A-1965-04-15), registration cancelled 1965-04-15, S/N 17228431 (OpenAirDocs)
- Reported make and model: CESSNA 172
- Registry model: [Cessna 172](https://openairdocs.org/model/cessna-172) (registry code 2072402) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: 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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