# NTSB SEA76FYC20: Hiller Acft UH-12B, N8108H, Brownsville, OR, September 20, 1975

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: September 20, 1975
- Place: Brownsville, OR · BROWNSVILLE, OR
- Location: 44.3922° N, 122.9833° W: Placed by OpenAirDocs: center of Brownsville, OR, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.3922&lon=-122.9833&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report January 15, 1976
- Report: Brief approved by the director
- NTSB case key (mKey): 151466
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA76FYC20
- Page: https://openairdocs.org/ntsb/SEA76FYC20

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3739  75/9/20    BROWNSVILLE,OR      HILLER ACFT UH-12B  CR-  0  0  1  INSTRUCTIONAL             PRIVATE, AGE 43, 400
        TIME - 1645                    N8108H              PX-  0  0  0  TRAINING                  TOTAL HOURS, 53 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - PIONEER VILLA
        DEPARTURE POINT             INTENDED DESTINATION
          BROWNSVILLE,OR              LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: VERTICAL
           NOSE OVER/DOWN                                           LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: CLUTCH ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - OVERHEATED
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
        PARTIAL POWER LOSS - PARTIAL LOSS OF POWER - 1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- CLUTCH PUCKS CHARRED,CLUTCH DRUM DISCOLORED FM OVERHEAT.T/D ON REAR OF SKID,M/R STRUCK TAILBOOM.
```

## Aircraft

- Registration: [N8108H](https://openairdocs.org/deregistered/N8108H-2012-09-10), registration cancelled 2012-09-10, S/N 108, built 1952 (OpenAirDocs)
- Reported make and model: HILLER ACFT UH-12B
- Registry model: [Hiller UH-12A](https://openairdocs.org/model/hiller-uh-12a) (registry code 4360104) (OpenAirDocs)
- Registry engine: [Franklin 6V-335 series](https://openairdocs.org/engine/franklin-6v-335-series) (registry code 27039, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Pioneer Villa

## 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 19750920038669A](https://openairdocs.org/incident/19750920038669A), Sep 20, 1975: Hiller UH12A, Brownsville, OR, Destroyed. Clutch pucks charred,clutch drum discolored fm overheat.t/d on rear of skid,m/r struck tailboom.

## Other investigations on N8108H (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 LAX84FA106](https://openairdocs.org/ntsb/LAX84FA106), Dec 16, 1983: Hiller UH-12A (N8108H), Van Nuys, CA, substantial damage
- [NTSB SEA77DYM34](https://openairdocs.org/ntsb/SEA77DYM34), May 28, 1977: Hiller Acft UH-12C (N8108H), Albany, OR, 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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