# NTSB FTW71FRD47: S.N.I.A.S. SA318C, N8267, Grand Isle, LA, May 21, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 21, 1971
- Place: Grand Isle, LA · GRAND ISLE, LA
- Location: 29.2129° N, 90.0291° W: Placed by OpenAirDocs: center of Grand Isle, LA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=29.2129&lon=-90.0291&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report January 13, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 161536
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW71FRD47
- Page: https://openairdocs.org/ntsb/FTW71FRD47

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1661  71/5/21    GRAND ISLE,LA       S.N.I.A.S. SA318C   CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 49, 14200
        TIME - 0705                    N8267               PX-  0  0  2  CTR PASSG-D               TOTAL HOURS, 316 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          GRAND ISLE,LA               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: VERTICAL
           DITCHING                                                 LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - LUBRICATING SYSTEM: OIL COOLERS
           MISCELLANEOUS ACTS,CONDITIONS - OIL EXHAUSTION-ENGINE LUBRICATION SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - CORRODED/CORROSION
           MISCELLANEOUS ACTS,CONDITIONS - LEAK/LEAKAGE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON WATER
        REMARKS- LEAKS FND IN OIL COOLER TUBES CAUSED BY CORROSION.UNBAL FUEL RATIO CAUSED COMPRSR STALL,PWR LOSS.
```

## Aircraft

- Registration: [N8267](https://openairdocs.org/deregistered/N8267-1974-10-01), registration cancelled 1974-10-01, S/N 2169, built 1970 (OpenAirDocs)
- Reported make and model: S.N.I.A.S. SA318C
- Registry model: [Aerospatiale SA 318C ALOUETTE AST](https://openairdocs.org/model/aerospatiale-sa-318c-alouette-ast) (registry code 8680514) (OpenAirDocs)
- Category: Helicopter
- Engines: turbo shaft
- Damage: 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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