# NTSB LAX68A0004: Ujihara B8M, N6550C, Adelanto, CA, July 10, 1967

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: July 10, 1967
- Place: Adelanto, CA · ADELANTO, CA
- Location: 34.5828° N, 117.4092° W: Placed by OpenAirDocs: center of Adelanto, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.5828&lon=-117.4092&mi=10
- Phase of flight: [Uncontrolled descent](https://openairdocs.org/ntsb-phases/650) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report November 28, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 115899
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX68A0004
- Page: https://openairdocs.org/ntsb/LAX68A0004

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0673  67/7/10    ADELANTO,CALIF      UJIHARA B8M         CR-  1  0  0  MISCELLANEOUS             PRIVATE, AGE 35, 6000
        TIME - 1800                    N6550C              PX-  0  0  0  TEST                      TOTAL HOURS, 0 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
           PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT
           WEATHER - UNFAVORABLE WIND CONDITIONS
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - CARBON MONOXIDE POISONING
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TEMPERATURE-F
          NONE                                                      90
        WIND DIRECTION-DEGREES                                   WIND VELOCITY-KNOTS
          225                                                       15
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- CO LEVEL 32 PERCENT-SOURCE UNKNOWN.WIND 15K GUSTING 30K.ROLLED TO RT,WAS NEARLY INVERTED AT IMPACT
```

## Aircraft

- Registration: [N6550C](https://openairdocs.org/deregistered/N6550C-2018-04-06), registration cancelled 2018-04-06, S/N 1-GU, built 1966 (OpenAirDocs)
- Reported make and model: UJIHARA B8M
- Registry model: [Ujihara Special BENSEN B-8M](https://openairdocs.org/model/ujihara-special-bensen-b-8m) (registry code 130078T) (OpenAirDocs)
- Registry engine: [Lycoming O&GO-145C series](https://openairdocs.org/engine/lycoming-o-go-145c-series) (registry code 41503, reciprocating) (OpenAirDocs)
- Category: Gyroplane, amateur-built
- 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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