# NTSB OAK71DVM43: Hiller UH12L4, N90459, Morgan Hill, CA, February 23, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: February 23, 1971
- Place: Morgan Hill, CA · MORGAN HILL, CA
- Location: 37.1325° N, 121.6419° W: Placed by OpenAirDocs: center of Morgan Hill, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.1325&lon=-121.6419&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report December 8, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 160155
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK71DVM43
- Page: https://openairdocs.org/ntsb/OAK71DVM43

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0615  71/2/23    MORGAN HILL,CALIF   HILLER UH12L4       CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 37, 4900
        TIME - 1000                    N90459              PX-  0  0  1  AERIAL SURVEY             TOTAL HOURS, 760 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          MORGAN HILL,CALIF           LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: OBJECT                                    TAKEOFF: RUNNING
        PROBABLE CAUSE(S)
           TERRAIN - HIDDEN OBSTRUCTIONS
           TERRAIN - HIGH VEGETATION
         FIRE AFTER IMPACT
        REMARKS- ACFT HIT LOG WHILE LIFTING,CRASHED,WAS DESTROYED BY FIRE.
```

## Aircraft

- Registration: [N90459](https://openairdocs.org/deregistered/N90459-1972-06-27), registration cancelled 1972-06-27, S/N 2517 (OpenAirDocs)
- Reported make and model: HILLER UH12L4
- Registry model: [Hiller UH-12L4](https://openairdocs.org/model/hiller-uh-12l4) (registry code 4360128) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Destroyed

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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