# NTSB SEA71FWD03: Vancraft GC-1, N3631, Olympia, WA, July 12, 1970

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: July 12, 1970
- Place: Olympia, WA · OLYMPIA, WA
- Location: 47.0406° N, 122.8950° W: Placed by OpenAirDocs: center of Olympia, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.0406&lon=-122.8950&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report September 23, 1970
- Report: Brief approved by the director
- NTSB case key (mKey): 115964
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA71FWD03
- Page: https://openairdocs.org/ntsb/SEA71FWD03

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0973  70/7/12    OLYMPIA,WASH        VANCRAFT GC-1       CR-  1  0  0  INSTRUCTIONAL             STUDENT, AGE 33, 17 TOTAL
        TIME - 1230                    N3631               PX-  0  0  0  TRAINING                  HOURS, ALL IN TYPE, NOT
                                       DAMAGE-DESTROYED    OT-  0  0  0                            INSTRUMENT RATED.
        NAME OF AIRPORT - OLYMPIA
        DEPARTURE POINT             INTENDED DESTINATION
          OLYMPIA,WASH                OLYMPIA,WASH
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: UNCONTROLLED                LANDING: TRAFFIC PATTERN-CIRCLING
        PROBABLE CAUSE(S)
           MISCELLANEOUS - UNDETERMINED
        REMARKS- ACFT OBSERVED TO ROLL UP ON SIDE AND PLUMMET TO GRND.APRX FULL POWER ON AT IMPACT.
```

## Aircraft

- Registration: [N3631](https://openairdocs.org/deregistered/N3631-2011-07-06), registration cancelled 2011-07-06, S/N EC-1, built 1969 (OpenAirDocs)
- Reported make and model: VANCRAFT GC-1
- Registry model: [Cummins-Vancraft GC-1](https://openairdocs.org/model/cummins-vancraft-gc-1) (registry code 056028J) (OpenAirDocs)
- Registry engine: [Mcculloch 4318A&E/0-100](https://openairdocs.org/engine/mcculloch-4318a-e-0-100) (registry code 43101, reciprocating) (OpenAirDocs)
- Category: Helicopter, amateur-built
- Engines: reciprocating
- Damage: Destroyed
- Airport: Olympia

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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