# NTSB OAK78FVM40: Beech C23, N9759L, San Jose, CA, August 11, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 11, 1978
- Place: San Jose, CA · SAN JOSE, CA
- Location: 37.3394° N, 121.8950° W: Placed by OpenAirDocs: center of San Jose, CA, within about 8 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.3394&lon=-121.8950&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report September 15, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 139952
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK78FVM40
- Page: https://openairdocs.org/ntsb/OAK78FVM40

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2069  78/8/11    SAN JOSE,CA         BEECH C23           CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 55, 1077
        TIME - 1535                    N9759L              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 142 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - REID HILLVIEW
        DEPARTURE POINT             INTENDED DESTINATION
          SAN JOSE,CA                 TRACY,CA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: CLIMB TO CRUISE
           COLLIDED WITH: FENCE,FENCEPOSTS                          LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
           MISCELLANEOUS ACTS,CONDITIONS - OIL EXHAUSTION-ENGINE LUBRICATION SYSTEM
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- VACUUM PUMP REMOVED,NO COVER PLATE INSTALLED ON ENGINE MOUNTING PAD.
```

## Aircraft

- Registration: [N9759L](https://openairdocs.org/deregistered/N9759L-2012-11-26), registration cancelled 2012-11-26, S/N M-1380, built 1972 (OpenAirDocs)
- Reported make and model: BEECH C23
- Registry model: [Beech C23](https://openairdocs.org/model/beech-c23) (registry code 1151242) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Reid Hillview

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19780811023549A](https://openairdocs.org/incident/19780811023549A), Aug 11, 1978: Beech C23, San Jose, CA, Substantial damage. Vacuum pump removed,no cover plate installed on engine mounting p

## Other investigations on N9759L (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 DEN74FTE26](https://openairdocs.org/ntsb/DEN74FTE26), Oct 19, 1973: Beech C23 (N9759L), Colo.Springs, CO, 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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