# NTSB DEN71AD015: Beech B35, N8817A, Evanston, WY, October 6, 1970

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: October 6, 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: [Uncontrolled descent](https://openairdocs.org/ntsb-phases/650) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed, report January 20, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 164442
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN71AD015
- Page: https://openairdocs.org/ntsb/DEN71AD015

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1633   70/10/6   EVANSTON,WYO        BEECH B35           CR-  1  0  0  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1340                    N8817A              PX-  1  0  0  PLEASURE/PERSONAL TRANSP  AGE 55, 13000 TOTAL
                                       DAMAGE-DESTROYED    OT-  0  0  0                            HOURS, 144 IN TYPE,
                                                                                                   INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          AUBURN,CALIF                GRAND ISLAND,NEBR
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           PILOT IN COMMAND - ATTEMPTED OPERATION W/KNOWN DEFICIENCIES IN EQUIPMENT
        FACTOR(S)
           WEATHER - LOW CEILING
           WEATHER - SNOW
           WEATHER - ICING CONDITIONS-INCLUDES SLEET,FREEZING RAIN,ETC.
           MISCELLANEOUS ACTS,CONDITIONS - AIRFRAME ICE
        WEATHER BRIEFING - OTHER
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        MISSING AIRCRAFT - LATER RECOVERED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  100
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          1/4 MILE OR LESS                                         SNOW
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TYPE OF WEATHER CONDITIONS
          NONE                                                     IFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- CONT INTO ICING COND.LOST CTL.ACFT NOT DE-ICER EQUIPPED.FSS WEA BRIEF PLT ABOUT 18 HRS BEFORE DEP.
```

## Aircraft

- Registration: [N8817A](https://openairdocs.org/deregistered/N8817A-2015-01-28), registration cancelled 2015-01-28, S/N D-2261, built 1950 (OpenAirDocs)
- Reported make and model: BEECH B35
- Registry model: [Beech B35](https://openairdocs.org/model/beech-b35) (registry code 1151506) (OpenAirDocs)
- Registry engine: [Continental E185 series](https://openairdocs.org/engine/continental-e185-series) (registry code 17014, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; 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.