# NTSB OAK74DVA29: Scorpion 1, N17123, Exeter, CA, October 25, 1973

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: October 25, 1973
- Place: Exeter, CA · EXETER, CA
- Location: 36.2941° N, 119.1460° W: Placed by OpenAirDocs: center of Exeter, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=36.2941&lon=-119.1460&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report December 6, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 188345
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK74DVA29
- Page: https://openairdocs.org/ntsb/OAK74DVA29

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3146  73/10/25   EXETER,CALIF        SCORPION 1          CR-  0  0  1  NONCOMMERCIAL             STUDENT, AGE 63, 24 TOTAL
        TIME - 1015                    N17123              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  HOURS, 18 IN TYPE, NOT
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          EXETER,CALIF                LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            LANDING: FINAL APPROACH
           COLLIDED WITH: TREES                                     LANDING: FINAL APPROACH
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPERLY SECURED
           MISCELLANEOUS - FOREIGN MATERIAL AFFECTING NORMAL OPERATIONS
           TERRAIN - HIGH OBSTRUCTIONS
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- ENG OIL BATH COVER DOOR OPENED IN FLT.COVERED M/R BLADE V BELTS & CAUSED SLIPPAGE.NO SAFETY METHOD
```

## Aircraft

- Registration: [N17123](https://openairdocs.org/deregistered/N17123-1974-04-22), registration cancelled 1974-04-22, S/N FE-03 (OpenAirDocs)
- Reported make and model: SCORPION 1
- Registry model: [Edmiston SCORPION ONE](https://openairdocs.org/model/edmiston-scorpion-one) (registry code 0562583) (OpenAirDocs)
- Category: Helicopter, amateur-built
- 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 19731025035319A](https://openairdocs.org/incident/19731025035319A), Oct 25, 1973: Amtr 0562583, Exeter, CA, Substantial damage. Eng oil bath cover door opened in flt. Covered m/r blade v belts & caused slippage. No safety method

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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