# Accident 19920815031449A: Hiller UH12E, Arvin, CA, August 15, 1992

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 15, 1992, 06:15 local time
- Place: Arvin, CA
- Damage: Substantial damage
- Phase of flight: Pwr Off Vert Land/Autorotate
- Operating rules: Agricultural (Part 137)
- Operator: CUFG
- Location: 35.2504° N, 118.9092° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=35.2504&lon=-118.9092&mi=10
- Aircraft: N9753C, a cancelled registration (https://openairdocs.org/deregistered/N9753C-2013-05-30) (OpenAirDocs)
- Registry model: Hiller UH-12E (registry code 4360122, https://openairdocs.org/model/hiller-uh-12e) (OpenAirDocs)
- Registry engine: Lycoming VO-540 series (registry code 41534, https://openairdocs.org/engine/lycoming-vo-540-series) (OpenAirDocs)
- Reported make and model: HILLER UH12E
- Reported engine: ALLSN 250C20B
- Fatal injuries: 0
- Pilot flight hours: 7,890 total, 3,502 in this make and model, 238 in the last 90 days
- NTSB investigation: [NTSB LAX92LA349](https://openairdocs.org/ntsb/LAX92LA349) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19920815031449A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

ROTOR SYSTEM FAILED DURING SPRAY RUN. SEVERE OSCILLATION AND VIBRATION PRIOR IMPACT. ROTOR BLADE TORSION PIN FAILED

## The NTSB's investigation of this event (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 LAX92LA349](https://openairdocs.org/ntsb/LAX92LA349), Aug 15, 1992: Hiller UH12-E, Saloy Conver (N9753C), Arvin, CA, substantial damage. Probable cause: THE FAILURE OF THE TENSION TORSION BAR PIN DUE TO FATIGUE. CONTRIBUTING TO THIS ACCIDENT WAS THAT IT WAS NOT POSSIBLE FOR THE PILOT TO FLARE THE HELICOPTER ON LANDING.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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