# NTSB OAK71AP018: Boeing A75N1, N49793, Castro Valley, CA, September 26, 1970

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: September 26, 1970
- Place: Castro Valley, CA · CASTRO VALLEY, CA
- Location: 37.7083° N, 122.0628° W: Placed by OpenAirDocs: center of Castro Valley, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.7083&lon=-122.0628&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed, report January 28, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 166174
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK71AP018
- Page: https://openairdocs.org/ntsb/OAK71AP018

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1657  70/9/26    CASTRO VALLEY,CAL   BOEING A75N1        CR-  2  0  0  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1118                    N49793              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  AGE 44, 3782 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            150 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          OAKLAND,CALIF               CASTRO VALLEY,CAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: ACROBATICS
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - EXERCISED POOR JUDGMENT
           MISCELLANEOUS ACTS,CONDITIONS - UNWARRANTED LOW FLYING
        REMARKS- STRUCK HILLSIDE DURING PULL OUT FROM LOW ALT LOOP.
```

## Aircraft

- Registration: [N49793](https://openairdocs.org/aircraft/N49793), registered now, S/N 75-2312, built 1941 (OpenAirDocs)
- Reported make and model: BOEING A75N1
- Registry model: [Boeing A75N1(PT17)](https://openairdocs.org/model/boeing-a75n1-pt17) (registry code 1380134) (OpenAirDocs)
- Registry engine: [Continental W670 series](https://openairdocs.org/engine/continental-w670-series) (registry code 17018, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed

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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