# NTSB OAK71DVM18: Piper PA-18, N4425Z, Bradley, CA, September 28, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 28, 1970
- Place: Bradley, CA · BRADLEY, CA
- Location: 35.8628° N, 120.8043° W: Placed by OpenAirDocs: center of Bradley, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=35.8628&lon=-120.8043&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report July 9, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 132270
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK71DVM18
- Page: https://openairdocs.org/ntsb/OAK71DVM18

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3875  70/9/28    BRADLEY,CALIF       PIPER PA-18         CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 23, 1100
        TIME - 1400                    N4425Z              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 450 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - PRIVATE STRIP
        DEPARTURE POINT             INTENDED DESTINATION
          BRADLEY,CALIF               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAKEOFF: RUN
           COLLIDED WITH: TREES                                     TAKEOFF: RUN
        PROBABLE CAUSE(S)
           MISCELLANEOUS - EVASIVE MANEUVER TO AVOID COLLISION
           MISCELLANEOUS - ANIMAL(S) ON RUNWAY/TAXIWAY/RAMP
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT CONDITIONS: OTHER
        REMARKS- DEER APPEARED ON STRIP.STRIP ABT 60FT WIDE,TREES ALONG EDGE.
```

## Aircraft

- Registration: [N4425Z](https://openairdocs.org/aircraft/N4425Z), registered now, S/N 18-8762, built 1968 (OpenAirDocs)
- Reported make and model: PIPER PA-18
- Registry model: [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150) (registry code 7101828) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Private Strip

## Other investigations on N4425Z (1)

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.

- [NTSB WPR10CA167](https://openairdocs.org/ntsb/WPR10CA167), Mar 17, 2010: Piper PA-18-150 (N4425Z), Okanogan, WA, substantial damage. Probable cause: The pilot's failure to maintain clearance from a fence at the end of the runway.

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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