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| Date: | Saturday 29 August 1998 |
| Time: | 03:45 |
| Type: |  Hiller UH-12E |
| Owner/operator: | |
| Registration: | C-FTHT |
| MSN: | |
| Year of manufacture: | 1962 |
| Fatalities: | Fatalities: 0 / Occupants: |
| Other fatalities: | 0 |
| Aircraft damage: | Unknown |
| Category: | Accident |
| Location: | Blue River, 15 NM E -
 Canada
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Unknown |
| Departure airport: | |
| Confidence Rating: |  Information verified through data from accident investigation authorities |
The Hiller UH-12E pilot was delivering shake blocks on a 150-foot line. The terrain was treed and steeply sloped. The helicopter was in a hover over the delivery site when it began to vibrate violently, causing the pilot control difficulties. The pilot released the load and performed an autorotative landing into a nearby clear-cut patch. The helicopter was substantially damaged by the debris on the ground. There were no injuries. A witness reported that a branch from a tree higher up the slope, probably dislodged by the rotor wash, had fallen into the helicopter's main rotor.
Sources:
CADORS 1998P0578
Revision history:
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