# NTSB FTW72AF004: Bell 47G4A, N4708R, Morgan City, LA, July 14, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 14, 1971
- Place: Morgan City, LA · MORGAN CITY, LA
- Location: 29.7103° N, 91.1915° W: Placed by OpenAirDocs: center of Morgan City, LA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=29.7103&lon=-91.1915&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report March 6, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 162555
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW72AF004
- Page: https://openairdocs.org/ntsb/FTW72AF004

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2543  71/7/14    MORGAN CITY,LA      BELL 47G4A          CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 27, 2031
        TIME - 1230                    N4708R              PX-  0  0  2  AIR TAXI-PASSG            TOTAL HOURS, 906 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          PLATFORM SS214B             PLATFORM SS214H
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
           PILOT IN COMMAND - SPONTANEOUS-IMPROPER ACTION
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON WATER
        REMARKS- PLT TKOF ON 1 MAG,TURNED MAGS OFF INSTEAD OF ON,LOST RPM,LNDD HRD.ACFT SANK BUT RCVRD.
```

## Aircraft

- Registration: [N4708R](https://openairdocs.org/deregistered/N4708R-1973-06-25), registration cancelled 1973-06-25, S/N 7633 (OpenAirDocs)
- Reported make and model: BELL 47G4A
- Registry model: [Bell 47G-4A](https://openairdocs.org/model/bell-47g-4a) (registry code 1181031) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N4708R (3)

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.

- [NTSB FTW73DRD10](https://openairdocs.org/ntsb/FTW73DRD10), Nov 10, 1972: Bell 47G-4A (N4708R), Dulac, LA, substantial damage
- [NTSB FTW72FRD10](https://openairdocs.org/ntsb/FTW72FRD10), Sep 18, 1971: Bell 47G4A (N4708R), Morgan City, LA, substantial damage
- [NTSB FTW70A0016](https://openairdocs.org/ntsb/FTW70A0016), Sep 13, 1969: Bell 47G-4A (N4708R), Pecan Island, LA, substantial damage

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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