# NTSB DEN69D0047: Beech A23-19, N4729J, Boulder, CO, June 22, 1968

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 22, 1968
- Place: Boulder, CO · BOULDER, CO
- Location: 40.0244° N, 105.2513° W: Placed by OpenAirDocs: center of Boulder, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.0244&lon=-105.2513&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 19, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 109840
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN69D0047
- Page: https://openairdocs.org/ntsb/DEN69D0047

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1955  68/6/22    BOULDER,COLO        BEECH A23-19        CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 28, 109
        TIME - 1425                    N4729J              PX-  0  0  0  PRACTICE                  TOTAL HOURS, 6 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - BOULDER VALLEY
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            LANDING: TRAFFIC PATTERN-CIRCLING
           COLLIDED WITH: DITCHES                                   LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISMANAGEMENT OF FUEL
           MISCELLANEOUS ACTS,CONDITIONS - FUEL STARVATION
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- IMPROPER OPERATION OF FUEL SELECTOR VALVES.
```

## Aircraft

- Registration: [N4729J](https://openairdocs.org/deregistered/N4729J-1976-06-16), registration cancelled 1976-06-16, S/N MB-187, built 1967 (OpenAirDocs)
- Reported make and model: BEECH A23-19
- 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: Boulder Valley

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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