# NTSB UNK65X1047: Beechcraft C-50, N4931B, Altadena, CA, December 18, 1964

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: December 18, 1964
- Place: Altadena, CA · ALTADENA, CA
- Location: 34.1922° N, 118.1356° W: Placed by OpenAirDocs: center of Altadena, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.1922&lon=-118.1356&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed, report April 14, 1965
- Report: Brief approved by the director
- NTSB case key (mKey): 186065
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK65X1047
- Page: https://openairdocs.org/ntsb/UNK65X1047

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0968  64/12/18 NR.ALTADENA CALIF     BEECHCRAFT C-50     CR-  1  0  0  NONCOMMERCIAL             PRIVATE, AGE 50, 870
        TIME - 1718                    N4931B              PX-  1  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 368 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER IFR OPERATION
           PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.
        FACTOR(S)
           AIRPORTS/AIRWAYS/FACILITIES - AIRPORT FACILITIES: OTHER
        REMARKS- BURBANK APPROACH-RADAR COVERAGE LIMITED AT LOW ALTITUDES IN NORTHEAST QUADRANT.
```

## Aircraft

- Registration: [N4931B](https://openairdocs.org/deregistered/N4931B-1965-02-08), registration cancelled 1965-02-08, S/N CH-332 (OpenAirDocs)
- Reported make and model: BEECHCRAFT C-50
- Registry model: [Beech C-50](https://openairdocs.org/model/beech-c-50) (registry code 1152510) (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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