# NTSB OAK71AP027: Cessna TU206E, N736, Boulder City, NV, November 25, 1970

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: November 25, 1970
- Place: Boulder City, NV · BOULDER CITY, NV
- Location: 35.9786° N, 114.8325° W: Placed by OpenAirDocs: center of Boulder City, NV, within about 8 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=35.9786&lon=-114.8325&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 3 fatal, 1 serious
- Status: Completed, report March 25, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 159256
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK71AP027
- Page: https://openairdocs.org/ntsb/OAK71AP027

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2944  70/11/25   BOULDER CITY,NEV    CESSNA TU206E       CR-  0  1  0  MISCELLANEOUS             COMMERCIAL, AGE 53, 4533
        TIME - 1113                    N736                PX-  3  0  0  OTHER PUBLIC              TOTAL HOURS, 200 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          BOULDER CITY,NEV            LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           TURBULENCE                                               IN FLIGHT: OTHER
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           WEATHER - TURBULENCE IN FLIGHT,CLEAR AIR
           WEATHER - DOWNDRAFT,UPDRAFTS
        FACTOR(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TYPE OF WEATHER CONDITIONS
          NONE                                                     VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- ROBERTSON STOL,AMPHIBIAN. LO LVL SURVEY FLT.WND GUSTY,VARIABLE.ACFT SETTLED IN LAKE,NOSED OVR SANK
```

## Aircraft

- Registration: N736 (not matched to a registry record)
- Reported make and model: CESSNA TU206E
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

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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