# NTSB OAK71DXQ40: Hiller 12E, N90475, Ely, NV, May 25, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 25, 1971
- Place: Ely, NV · ELY, NV
- Location: 39.2649° N, 114.8708° W: Placed by OpenAirDocs: center of Ely, NV, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.2649&lon=-114.8708&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report February 14, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 161959
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK71DXQ40
- Page: https://openairdocs.org/ntsb/OAK71DXQ40

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2087  71/5/25    ELY,NEV             HILLER 12E          CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, AGE 48, 14650
        TIME - 1930                    N90475              PX-  0  0  0  TEST                      TOTAL HOURS, 222 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          ELY,NEV                     LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: OBJECT                                    LANDING: ROLL-ON/RUN-ON
           ROLL OVER                                                LANDING: ROLL-ON/RUN-ON
        PROBABLE CAUSE(S)
           TERRAIN - HIGH VEGETATION
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING OFF AIRPORT
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
                                  UNUSUAL NOISE
        REMARKS- HEARD LOUD NOISE ON TKOF,ENTRD AUTO,L SKID HIT BRUSH.CAUSE OF NOISE NOT DETERMINED.
```

## Aircraft

- Registration: N90475 (not matched to a registry record)
- Reported make and model: HILLER 12E
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.