# NTSB OAK72AP004: Cessna 172K, N84711, Bass Lake, CA, July 31, 1971

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: July 31, 1971
- Place: Bass Lake, CA · BASS LAKE, CA
- Location: 37.3254° N, 119.5644° W: Placed by OpenAirDocs: center of Bass Lake, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.3254&lon=-119.5644&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 3 fatal
- Status: Completed, report April 12, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 162131
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK72AP004
- Page: https://openairdocs.org/ntsb/OAK72AP004

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3295  71/7/31    BASS LAKE,CALIF     CESSNA 172K         CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 23, 225
        TIME - 0945                    N84711              PX-  2  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 14 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - BASS LAKE
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          MOFFETT NAS,CALIF           RETURN                      UNKNOWN/NOT REPORTED
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: SPIN                                              IN FLIGHT: OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER IN-FLIGHT DECISIONS OR PLANNING
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
           WEATHER - HIGH DENSITY ALTITUDE
        WEATHER BRIEFING - OTHER
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        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                  TEMPERATURE-F
          NONE                                                      85
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      OTHER
         FIRE AFTER IMPACT
        REMARKS- TURNED INTO RISING TERRAIN AFTER LOW PASS AT ONE-WAY SHORT STRIP. DENSITY ALT ABOUT 5800 FT.
```

## Aircraft

- Registration: [N84711](https://openairdocs.org/deregistered/N84711-1971-09-27), registration cancelled 1971-09-27, S/N 17258587, built 1969 (OpenAirDocs)
- Reported make and model: CESSNA 172K
- Registry model: [Cessna 172K](https://openairdocs.org/model/cessna-172k) (registry code 2072430) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Bass Lake

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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