# NTSB OAK76DVM14: Scorpion TWO, N48352, San Martin, CA, August 31, 1975

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: August 31, 1975
- Place: San Martin, CA · SAN MARTIN, CA
- Location: 37.0829° N, 121.5963° W: Placed by OpenAirDocs: center of San Martin, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.0829&lon=-121.5963&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report December 19, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 151037
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK76DVM14
- Page: https://openairdocs.org/ntsb/OAK76DVM14

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3369  75/8/31    SAN MARTIN,CA       SCORPION TWO        CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 43, 8527
        TIME - 1530                    N48352              PX-  0  0  0  TEST                      TOTAL HOURS, 0 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - SOUTH COUNTY
        DEPARTURE POINT             INTENDED DESTINATION
          SAN MARTIN,CA               NONE
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ROLL OVER                                                IN FLIGHT: HOVERING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - ATTEMPTED OPERATION BEYOND EXPERIENCE/ABILITY LEVEL
           PILOT IN COMMAND - IMPROPER COMPENSATION FOR WIND CONDITIONS
        FACTOR(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
           WEATHER - UNFAVORABLE WIND CONDITIONS
           MISCELLANEOUS ACTS,CONDITIONS - DOWNWIND
        WEATHER BRIEFING - NO RECORD OF BRIEFING RECEIVED
        WEATHER FORECAST - UNKNOWN/NOT REPORTED
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          CLEAR                                                    UNLIMITED
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          5 OR OVER(UNLIMITED)                                     NONE
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  RELATIVE BEARING OF WIND
          NONE                                                     TAIL WIND 158-202 DEGREES
        TEMPERATURE-F                                            WIND DIRECTION-DEGREES
           85                                                      315
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           15                                                      VFR
        TYPE OF FLIGHT PLAN
          NONE
        REMARKS- GUSTING TO 26K.
```

## Aircraft

- Registration: N48352 (not matched to a registry record)
- Reported make and model: SCORPION TWO
- Category: Helicopter, amateur-built
- Engines: reciprocating
- Damage: Substantial damage
- Airport: South County

## 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 19750831035869A](https://openairdocs.org/incident/19750831035869A), Aug 31, 1975: Amtr 1302580, San Martin, CA, Substantial damage. Gusting to 26K.

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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