# NTSB CHI74DEM33: Bell 47G-2, N6738D, Greenville, MI, December 29, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 29, 1973
- Place: Greenville, MI · GREENVILLE, MI
- Location: 43.1796° N, 85.2540° W: Placed by OpenAirDocs: center of Greenville, MI, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.1796&lon=-85.2540&mi=10
- Phase of flight: [Emergency descent](https://openairdocs.org/ntsb-phases/600) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report April 1, 1974
- Report: Brief approved by the director
- NTSB case key (mKey): 187423
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI74DEM33
- Page: https://openairdocs.org/ntsb/CHI74DEM33

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4029  73/12/29   GREENVILLE,MICH     BELL 47G-2          CR-  0  0  2  INSTRUCTIONAL             COMMERCIAL, FL.INSTR.,
        TIME - 1320                    N6738D              PX-  0  0  0  DUAL                      AGE 45, 17000 TOTAL
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            HOURS, 2660 IN TYPE,
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - GREENVILLE MUNI
        DEPARTURE POINT             INTENDED DESTINATION
          GREENVILLE,MICH             LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: AUTOROTATIVE DESCENT
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           DUAL STUDENT - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
           MISCELLANEOUS - EVASIVE MANEUVER TO AVOID COLLISION
        FACTOR(S)
           TERRAIN - HIGH OBSTRUCTIONS
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
        REMARKS- WIND GUSTING 15K. STUDENT PULLD PWR OFF TOO FAST. TREE IN AUTOROTATN PATH.
```

## Aircraft

- Registration: N6738D (not matched to a registry record)
- Reported make and model: BELL 47G-2
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Greenville Muni

## 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 19731229042089A](https://openairdocs.org/incident/19731229042089A), Dec 29, 1973: Bell 47G2, Greenville, MI, Substantial damage. Wind gusting 15K. Student pulld pwr off too fast. Tree in autorotatn path.

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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