# NTSB CHI71AC026: Cessna 310D, N6765T, Watertown, WI, October 20, 1970

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: October 20, 1970
- Place: Watertown, WI · WATERTOWN, WI
- Location: 43.1894° N, 88.7289° W: Placed by OpenAirDocs: center of Watertown, WI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.1894&lon=-88.7289&mi=10
- Phase of flight: [Uncontrolled descent](https://openairdocs.org/ntsb-phases/650) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 3 fatal
- Status: Completed, report April 21, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 178681
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI71AC026
- Page: https://openairdocs.org/ntsb/CHI71AC026

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2765  70/10/20   WATERTOWN,WIS       CESSNA 310D         CR-  1  0  0  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1650                    N6765T              PX-  2  0  0  CTR PASSG-D               AGE 53, 10000 TOTAL
                                       DAMAGE-DESTROYED    OT-  0  0  0                            HOURS, 16 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - WATERTOWN MUNI
        DEPARTURE POINT             INTENDED DESTINATION
          EAGLE RIVER,WIS             BURLINGTON,WIS
        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 - CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS
           PILOT IN COMMAND - SPATIAL DISORIENTATION
        FACTOR(S)
           WEATHER - FOG
        WEATHER BRIEFING - UNKNOWN/NOT REPORTED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  600
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          2 MILES OR LESS                                          DRIZZLE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TYPE OF WEATHER CONDITIONS
          FOG                                                      VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- POSSIBILITY OF SEVERE CHRONIC LUNG DISEASE CAUSING A BLACK OUT EXISTS.
```

## Aircraft

- Registration: [N6765T](https://openairdocs.org/deregistered/N6765T-1971-01-15), registration cancelled 1971-01-15, S/N 39065 (OpenAirDocs)
- Reported make and model: CESSNA 310D
- Registry model: [Cessna 310D](https://openairdocs.org/model/cessna-310d) (registry code 2074212) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Watertown Muni

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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