# Accident 19890816030169A: Hiller UH12E, Tolleson, AZ, August 16, 1989

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 16, 1989, 04:30 local time
- Place: Tolleson, AZ
- Airport: Private
- Damage: Substantial damage
- Phase of flight: Pwr Off Vert Land/Autorotate
- Operating rules: Agricultural (Part 137)
- Operator: ZBUG
- Location: 33.4209° N, 112.2701° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=33.4209&lon=-112.2701&mi=10
- Aircraft: N7086, a cancelled registration (https://openairdocs.org/deregistered/N7086-2012-09-24) (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: LYC VO540C2A
- Fatal injuries: 0
- Pilot flight hours: 20,000 total, 4,000 in this make and model, 300 in the last 90 days
- NTSB investigation: [NTSB LAX89DUJ09](https://openairdocs.org/ntsb/LAX89DUJ09) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19890816030169A

## Narrative

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

ENGINE QUIT AFTER TAKEOFF FROM AG STRIP AUTOROTATED BUT IMPACTED HARD CAUSING BOUNCE AND ROLLOVER. WATER IN FUEL.

## 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 LAX89DUJ09](https://openairdocs.org/ntsb/LAX89DUJ09), Aug 16, 1989: Hiller UH-12E (N7086), Tolleson, AZ, substantial damage. Probable cause: AN ENGINE FAILURE DUE TO WATER CONTAMINATION IN THE FUEL SUPPLY WHICH PRECEDED AN AUTOROTATION AND COLLISION WITH THE GROUND DURING NIGHT TIME CONDITIONS.

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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