# NTSB SEA77FTI19: Bell 47G3B2, N7937J, Missoula, MT, September 1, 1977

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 1, 1977
- Place: Missoula, MT · MISSOULA, MT
- Location: 46.8721° N, 113.9940° W: Placed by OpenAirDocs: center of Missoula, MT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=46.8721&lon=-113.9940&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report October 27, 1977
- Report: Brief approved by the director
- NTSB case key (mKey): 145851
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA77FTI19
- Page: https://openairdocs.org/ntsb/SEA77FTI19

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2795   77/9/1  NR.MISSOULA,MT        BELL 47G3B2         CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 49, 5040
        TIME - 1045                    N7937J              PX-  0  0  1  AIR TAXI-PASSG            TOTAL HOURS, 650 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          MCKINLEY LAKE DAM,MT        LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: CLIMB TO CRUISE
           DITCHING                                                 LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
           TERRAIN - OTHER
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON WATER
        REMARKS- ENG FAIL AT LOW ALT OVER LAKE.
```

## Aircraft

- Registration: [N7937J](https://openairdocs.org/deregistered/N7937J-1991-10-07), registration cancelled 1991-10-07, S/N 6800 (OpenAirDocs)
- Reported make and model: BELL 47G3B2
- Registry model: [Bell 47G-3B-2](https://openairdocs.org/model/bell-47g-3b-2) (registry code 1181029) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## 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 19770901028399A](https://openairdocs.org/incident/19770901028399A), Sep 1, 1977: Bell 47G3B2, Missoula, MT, Substantial damage. Eng fail at low alt over lake.

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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