# NTSB OAK73DVG21: Cessna 172, N6621C, Clr Lk Oaks, CA, September 24, 1972

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: September 24, 1972
- Place: Clr Lk Oaks, CA · CLR LK OAKS, CA
- Location: 39.0206° N, 122.6596° W: Placed by OpenAirDocs: center of Clearlake Oaks, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.0206&lon=-122.6596&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious, 3 uninjured
- Status: Completed, report March 1, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 168549
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK73DVG21
- Page: https://openairdocs.org/ntsb/OAK73DVG21

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2628  72/9/24    CLR LK OAKS,CALIF   CESSNA 172          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 46, 82 TOTAL
        TIME - 1745                    N6621C              PX-  0  1  2  PLEASURE/PERSONAL TRANSP  HOURS, 22 IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          PRIVATE STRIP               SAN CARLOS,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: TREES                                     LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER IN-FLIGHT DECISIONS OR PLANNING
           PILOT IN COMMAND - EXERCISED POOR JUDGMENT
        FACTOR(S)
           WEATHER - HIGH DENSITY ALTITUDE
           MISCELLANEOUS ACTS,CONDITIONS - FLEW INTO BLIND CANYON
           TERRAIN - HIGH OBSTRUCTIONS
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        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- CRASH LNDD IN BOX CANYON.
```

## Aircraft

- Registration: [N6621C](https://openairdocs.org/deregistered/N6621C-2013-02-13), registration cancelled 2013-02-13, S/N 28157, built 1956 (OpenAirDocs)
- Reported make and model: CESSNA 172
- Registry model: [Cessna 172](https://openairdocs.org/model/cessna-172) (registry code 2072402) (OpenAirDocs)
- Registry engine: [Continental 0-300 series](https://openairdocs.org/engine/continental-0-300-series) (registry code 17022, reciprocating) (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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