# NTSB SEA66A0038: Sikorsky S-55, N73893, Seaside, OR, December 22, 1965

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: December 22, 1965
- Place: Seaside, OR · SEASIDE, OR
- Location: 45.9890° N, 123.9210° W: Placed by OpenAirDocs: center of Seaside, OR, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=45.9890&lon=-123.9210&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 6 minor
- Status: Completed, report August 9, 1967
- Report: Brief approved by the director
- NTSB case key (mKey): 175059
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA66A0038
- Page: https://openairdocs.org/ntsb/SEA66A0038

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-1108  65/12/22 NR.SEASIDE,OREG       SIKORSKY S-55       CR-  0  0  2  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1140                    N73893              PX-  0  0  4  CTR PASSG-D               AGE 30, 7716 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            400 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - SEASIDE
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           ROLL OVER                                                LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - MISCELLANEOUS: POWERPLANT FAILURE FOR UNDETERMINED REASONS
           TERRAIN - ROUGH WATER
        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- ACFT FLOAT EQUIP. LANDING SUCCESSFUL BUT MAIN ROTORS STRUCK SWELLS,CAUSED ROLL OVER.
```

## Aircraft

- Registration: N73893 (not matched to a registry record)
- Reported make and model: SIKORSKY S-55
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed
- Airport: Seaside

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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