ASN Wikibase Occurrence # 366651
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| Date: | Wednesday 4 July 1990 |
| Time: | 07:15 LT |
| Type: |  Hiller UH-12D |
| Owner/operator: | Blue Mountain Aviation |
| Registration: | N62431 |
| MSN: | 956 |
| Total airframe hrs: | 9084 hours |
| Engine model: | LYCOMING VO-435-A1C |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Walla Walla, WA -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Agricultural |
| Departure airport: | Walla Walla, WA |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
THE HELICOPTER WAS SUBSTANTIALLY DAMAGED DURING A FORCED LANDING, WHEN THE SKIDS CAUGHT IN PEA VINES OF THE CROP THE PILOT WAS SPRAYING. HE STATED THAT THE ENGINE SUSTAINED A SUDDEN POWER LOSS. DURING A POST-ACCIDENT CHECK, THE ENGINE STARTED NORMALLY AND RAN TO 3200 RPM.
Probable Cause: A LOSS OF ENGINE POWER FOR UNDETERMINED REASONS.
Accident investigation:
 |
|
Sources:
NTSB SEA90LA121
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 21-Mar-2024 10:43 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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