# NTSB SEA78DYK04: Hiller Acft FH1100, N92484, Walton, OR, December 22, 1977

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Closed
- Date: December 22, 1977
- Place: Walton, OR · WALTON, OR
- Location: 44.0307° N, 123.5854° W: Placed by OpenAirDocs: center of Walton, OR, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.0307&lon=-123.5854&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report March 15, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 143881
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA78DYK04
- Page: https://openairdocs.org/ntsb/SEA78DYK04

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4116  77/12/22 NR.WALTON,OR          HILLER ACFT FH1100  CR-  0  0  1  COMMERCIAL                COMMERCIAL, AGE 29, 2500
        TIME - 1145                    N92484              PX-  0  0  0  CONSTRUCTION              TOTAL HOURS, 92 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
         WALTON,OR                    LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: HOVERING
           ROLL OVER                                                LANDING: POWER-ON LANDING
        PROBABLE CAUSE(S)
           ROTORCRAFT - TRANSMISSION ROTOR DRIVE SYSTEM: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
           TERRAIN - ROUGH/UNEVEN
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- AERIAL LOGGING.LEFT TRANSMISSION LIFT LINK STRUT PN 24-28030-1,FRACTURED. AD 70-18-4 NCW.
```

## Aircraft

- Registration: [N92484](https://openairdocs.org/deregistered/N92484-2018-01-10), registration cancelled 2018-01-10, S/N 21, built 1967 (OpenAirDocs)
- Reported make and model: HILLER ACFT FH1100
- Registry model: [Fairchild Hiller FH-1100](https://openairdocs.org/model/fairchild-hiller-fh-1100) (registry code 3376502) (OpenAirDocs)
- Registry engine: [Allison 250 SER 400HP](https://openairdocs.org/engine/allison-250-ser-400hp) (registry code 03013, turbo-shaft) (OpenAirDocs)
- Category: Helicopter
- Engines: turbo shaft
- Damage: Destroyed

## 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 19771222042169A](https://openairdocs.org/incident/19771222042169A), Dec 22, 1977: Frchld FH1100, Walton, OR, Substantial damage. Aerial logging. Left transmission lift link strut pn 24-28030-1,fractured. AD 70-18-4 ncw.

## Other investigations on N92484 (1)

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 SEA80FYM40](https://openairdocs.org/ntsb/SEA80FYM40), Jun 4, 1980: Hiller Acft FH1100 (N92484), Albany, OR, 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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