ASN Wikibase Occurrence # 31071
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| Date: | Tuesday 10 June 1997 |
| Time: | 18:30 LT |
| Type: |  Bell 204/UH-1B |
| Owner/operator: | San Joaquin Helicopters |
| Registration: | N888SJ |
| MSN: | 1021 |
| Year of manufacture: | 1963 |
| Total airframe hrs: | 6947 hours |
| Engine model: | Lycoming T-53-L-110 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Destroyed |
| Category: | Accident |
| Location: | Heron, California -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Agricultural |
| Departure airport: | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot experienced a partial loss of engine power at a low elevation above ground level, while spraying a tomato field. He initiated an autorotative landing, and the helicopter touched down hard in the field. During the landing sequence, a main rotor blade severed the tail boom. The engine continued operating for between 10 and 12 minutes. Wreckage examination was limited due to extensive fire damage, and the reason for the power loss was not determined.
Probable Cause: partial loss of engine power for undetermined reasons. A factor relating to the accident was that the engine lost power when the helicopter was outside (below) the limits of the height/velocity curve.
Accident investigation:
 |
|
Sources:
NTSB LAX97LA206
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 27-Sep-2008 01:00 | ASN archive | Added |
| 31-Oct-2011 11:03 | Dr. John Smith | Updated [Time, Total fatalities, Total occupants, Other fatalities, Location, Country, Phase, Nature, Departure airport, Destination airport, Source, Damage, Narrative] |
| 08-Apr-2024 14:58 | ASN Update Bot | Updated [Time, Operator, Other fatalities, Phase, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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