# NTSB LAX75AUM24: Hiller Acft UH-12E, N75204, Seeley, CA, April 30, 1975

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 30, 1975
- Place: Seeley, CA · SEELEY, CA
- Location: 32.7910° N, 115.6843° W: Placed by OpenAirDocs: center of Seeley, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=32.7910&lon=-115.6843&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 12, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 148574
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX75AUM24
- Page: https://openairdocs.org/ntsb/LAX75AUM24

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0954  75/4/30    SEELEY,CA           HILLER ACFT UH-12E  CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 43, 10000
        TIME - 1530                    N75204              PX-  0  0  0  AERIAL APPLICATION        TOTAL HOURS, 9500 IN
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            TYPE, NOT INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          SEELEY,CA                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: STARTING SWATH RUN
           COLLIDED WITH: TREES                                     LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - ENGINE STRUCTURE: MASTER AND CONNECTING RODS
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
           TERRAIN - HIGH OBSTRUCTIONS
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
         SPECIAL DATA
          TOTAL HOURS IN CROP CONTROL - 9500                       KIND OF OPERATION - SPRAYING CROPS
          KIND OF CROP - FRUIT ORCHARDS                            TYPE OF CHEMICAL USED - LIQUID CHEMICAL-TOXIC
          PILOT' S SEAT BELT -UNKNOWN/NOT REPORTED                 GOGGLES - NOT USED
          CRASH HELMET - AVAILABLE USED                            COCKPIT CRASHPAD - NOT INSTALLED
          CRASH BAR - NOT INSTALLED                                TANK/HOPPER-LOCATION - AFT OF PILOT
          TERRAIN-TYPE -LEVEL,FLAT                                 ELEVATION-AREA BEING TREATED-FEET -  0
          SWATH RUN-HOW FLOWN - UNKNOWN/NOT REPORTED
        REMARKS- NR 2 CONROD FAILED. T/R HIT TREES.
```

## Aircraft

- Registration: [N75204](https://openairdocs.org/deregistered/N75204-2018-01-26), registration cancelled 2018-01-26, S/N 1276, built 1961 (OpenAirDocs)
- Reported make and model: HILLER ACFT UH-12E
- Registry model: [Hiller UH-12E](https://openairdocs.org/model/hiller-uh-12e) (registry code 4360122) (OpenAirDocs)
- Registry engine: [Lycoming VO-540 series](https://openairdocs.org/engine/lycoming-vo-540-series) (registry code 41534, reciprocating) (OpenAirDocs)
- Category: Helicopter
- 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 19750430010529A](https://openairdocs.org/incident/19750430010529A), Apr 30, 1975: Hiller UH12E, Seeley, CA, Substantial damage. Nr 2 conrod failed. T/r hit trees.

## Other investigations on N75204 (2)

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.

- [NTSB LAX78FUG44](https://openairdocs.org/ntsb/LAX78FUG44), Jul 29, 1978: Hiller UH-12E (N75204), Blythe, CA, substantial damage
- [NTSB LAX77FUG53](https://openairdocs.org/ntsb/LAX77FUG53), Jul 11, 1977: Hiller Acft UH-12E (N75204), Blythe, CA, 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.

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