# NTSB OAK66F0241: Boeing A-75N1, N7713C, Robbins, CA, April 23, 1966

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: April 23, 1966
- Place: Robbins, CA · ROBBINS, CA
- Location: 38.8669° N, 121.7071° W: Placed by OpenAirDocs: center of Robbins, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.8669&lon=-121.7071&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report May 6, 1966
- Report: Brief approved by the director
- NTSB case key (mKey): 172575
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK66F0241
- Page: https://openairdocs.org/ntsb/OAK66F0241

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0674  66/4/23    ROBBINS CALIF       BOEING A-75N1       CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 38, 5000
        TIME - 1800                    N7713C              PX-  0  0  0  ASSOC CROP CTL ACTIVITY   TOTAL HOURS, 4000 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            LANDING: FINAL APPROACH
           STALL: MUSH                                              LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- CAM REDUCTION GEAR ASSEMBLY FAILED.
```

## Aircraft

- Registration: [N7713C](https://openairdocs.org/deregistered/N7713C-1972-11-21), registration cancelled 1972-11-21, S/N 75-77131 (OpenAirDocs)
- Reported make and model: BOEING A-75N1
- Registry model: [Boeing A75N1](https://openairdocs.org/model/boeing-a75n1) (registry code 1380165) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: 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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