# NTSB OAK72DVD04: Rotorways Scorpi, N28HM, Santa Rosa, CA, July 13, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: July 13, 1971
- Place: Santa Rosa, CA · SANTA ROSA, CA
- Location: 38.4405° N, 122.7144° W: Placed by OpenAirDocs: center of Santa Rosa, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.4405&lon=-122.7144&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report March 8, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 162469
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK72DVD04
- Page: https://openairdocs.org/ntsb/OAK72DVD04-162469

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2632  71/7/13    SANTA ROSA,CALIF    ROTORWAYS SCORPI    CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1930                    N28HM               PX-  0  0  0  PRACTICE                  AGE 24, 2131 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            0 IN TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - SANTA ROSA
        DEPARTURE POINT             INTENDED DESTINATION
          SANTA ROSA,CALIF            LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: HOVERING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.
           PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        REMARKS- OVRCNTRLD CYCLIC.HNDBK STATES FIRST FEW HRS SHOUD BE PERFORMED WITH HELO IN TETHERED CONFIG.
```

## Aircraft

- Registration: [N28HM](https://openairdocs.org/deregistered/N28HM-2007-03-12), registration cancelled 2007-03-12, S/N 22071, built 1971 (OpenAirDocs)
- Reported make and model: ROTORWAYS SCORPI
- Registry model: [Scorpion SP-B](https://openairdocs.org/model/scorpion-sp-b) (registry code 0560238) (OpenAirDocs)
- Category: Helicopter, amateur-built
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Santa Rosa

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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