# NTSB LAX75DUJ01: Bensen B8M, Mesa, AZ, July 2, 1974

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: July 2, 1974
- Place: Mesa, AZ · MESA, AZ
- Location: 33.4223° N, 111.8226° W: Placed by OpenAirDocs: center of Mesa, AZ, within about 7 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.4223&lon=-111.8226&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report August 2, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 173427
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX75DUJ01
- Page: https://openairdocs.org/ntsb/LAX75DUJ01

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1740   74/7/2    MESA,ARIZ           BENSEN B8M          CR-  0  1  0  NONCOMMERCIAL             CERTIFICATE UNKNOWN, AGE
        TIME - 1410                    NONE                PX-  0  0  0  PLEASURE/PERSONAL TRANSP  25, 1986 TOTAL HOURS, 3
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, UNK/NR
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - FALCON
        DEPARTURE POINT             INTENDED DESTINATION
          MESA,ARIZ                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: CONTROLLED                  TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        FACTOR(S)
           PILOT IN COMMAND - IMPROPER COMPENSATION FOR WIND CONDITIONS
           PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT
           WEATHER - UNFAVORABLE WIND CONDITIONS
           MISCELLANEOUS ACTS,CONDITIONS - PILOT FATIGUE
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        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                  RELATIVE BEARING OF WIND
          NONE                                                     LEFT QUARTERING HEAD WIND 293-337 DEGREES
        TEMPERATURE-F                                            WIND VELOCITY-KNOTS
           115                                                      10
        TYPE OF WEATHER CONDITIONS                               TYPE OF FLIGHT PLAN
          VFR                                                      NONE
        REMARKS- ACFT SWERVED TO R TAIL LOW & HIT RWY.PLT MILITARY HELI RATED.ACFT UNCERT,NOT REG.
```

## Aircraft

- Registration: NONE (not matched to a registry record)
- Reported make and model: BENSEN B8M
- Category: Gyroplane, amateur-built
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Falcon

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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