# NTSB OAK69D0041: Beech A-23, N3640Q, San Carlos, CA, July 3, 1968

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 3, 1968
- Place: San Carlos, CA · SAN CARLOS, CA
- Location: 37.4990° N, 122.2676° W: Placed by OpenAirDocs: center of San Carlos, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.4990&lon=-122.2676&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 16, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 109827
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK69D0041
- Page: https://openairdocs.org/ntsb/OAK69D0041

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1943   68/7/3    SAN CARLOS,CALIF    BEECH A-23          CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 20, 114
        TIME - 1005                    N3640Q              PX-  0  0  0  PRACTICE                  TOTAL HOURS, 19 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - SAN CARLOS
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAKEOFF: RUN
           COLLIDED WITH: DITCHES                                   TAKEOFF: ABORTED
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN DIRECTIONAL CONTROL
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
        FACTOR(S)
           PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT
        REMARKS- PLT DID NOT CLOSE THROTTLE ALL THE WAY. WAS NOT FAMILIAR WITH VERNIER TYPE THROTTLE.
```

## Aircraft

- Registration: [N3640Q](https://openairdocs.org/aircraft/N3640Q), registered now, S/N MB-253, built 1967 (OpenAirDocs)
- Reported make and model: BEECH A-23
- Registry model: [Beech A23-19](https://openairdocs.org/model/beech-a23-19) (registry code 1151212) (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: San Carlos

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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