# NTSB OAK70F0119: Beech P-35, N1567Z, Mammoth Lks, CA, September 11, 1969

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 11, 1969
- Place: Mammoth Lks, CA · MAMMOTH LKS, CA
- Location: 37.6244° N, 118.9884° W: Placed by OpenAirDocs: center of Mammoth Lakes, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.6244&lon=-118.9884&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed, report May 7, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 157140
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK70F0119
- Page: https://openairdocs.org/ntsb/OAK70F0119

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3994  69/9/11    MAMMOTH LKS,CALIF   BEECH P-35          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 47, 461
        TIME - 1445                    N1567Z              PX-  0  0  3  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 141 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - LONG VALLEY
        DEPARTURE POINT             INTENDED DESTINATION
          MAMMOTH LKS,CALIF           HAWTHORNE,CALIF
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           WHEELS-UP                                                LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
           PILOT IN COMMAND - MISMANAGEMENT OF FUEL
           MISCELLANEOUS ACTS,CONDITIONS - INTENTIONAL WHEELS-UP
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
        REMARKS- MISUSED MIXTURE CTL AND FUEL BOOST PUMP.
```

## Aircraft

- Registration: N1567Z (not matched to a registry record)
- Reported make and model: BEECH P-35
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Long Valley

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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