# NTSB DEN76DTM44: Bensen B-8M, N4194, Lehi, UT, August 7, 1976

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 7, 1976
- Place: Lehi, UT · LEHI, UT
- Location: 40.4171° N, 111.8711° W: Placed by OpenAirDocs: center of Lehi, UT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.4171&lon=-111.8711&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 19, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 155274
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN76DTM44
- Page: https://openairdocs.org/ntsb/DEN76DTM44

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2742   76/8/7    LEHI,UT             BENSEN B-8M         CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 42, 105
        TIME - 1630                    N4194               PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 27 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - LEHI
        DEPARTURE POINT             INTENDED DESTINATION
          LEHI,UT                     LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: ROLL-ON/RUN-ON
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER LEVEL OFF
        FACTOR(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
           WEATHER - HIGH DENSITY ALTITUDE
           MISCELLANEOUS ACTS,CONDITIONS - TOUCH AND GO LANDING
        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                                                     RIGHT QUARTERING HEAD WIND 023-067 DEGREES
        TEMPERATURE-F                                            WIND DIRECTION-DEGREES
           85                                                      210
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           5                                                       VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- MCCULLOCH 4318G ENG. 1200RPM SHOULD HAVE BEEN USED IN DESCENT RATHER THAN IDLE RPM. D/A 7500FT.
```

## Aircraft

- Registration: [N4194](https://openairdocs.org/deregistered/N4194-2012-11-07), registration cancelled 2012-11-07, S/N HD-777, built 1968 (OpenAirDocs)
- Reported make and model: BENSEN B-8M
- Registry model: [Harris & Dimick BENSEN B-8M](https://openairdocs.org/model/harris-dimick-bensen-b-8m) (registry code 13007WA) (OpenAirDocs)
- Registry engine: [Mcculloch 4318A&E/0-100](https://openairdocs.org/engine/mcculloch-4318a-e-0-100) (registry code 43101, reciprocating) (OpenAirDocs)
- Category: Gyroplane, amateur-built
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Lehi

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19760807029009A](https://openairdocs.org/incident/19760807029009A), Aug 7, 1976: Amtr 13007WA, Lehi, UT, Substantial damage. Mcculloch 4318G eng. 1200RPM should have been used in descent rather than idle RPM. D/a 7500FT.

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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