ASN Wikibase Occurrence # 288037
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| Date: | Saturday 25 September 2010 |
| Time: | 18:00 LT |
| Type: | Bell 47G Soloy |
| Owner/operator: | Farm And Forest Helicopter Service, Inc. |
| Registration: | N7860S |
| MSN: | 6627 |
| Total airframe hrs: | 8871 hours |
| Engine model: | Rolls-Royce Allison 250 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Gaston, Oregon -
 United States of America
|
| Phase: | Landing |
| Nature: | Agricultural |
| Departure airport: | Gaston, OR |
| Gaston, OR | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot reported that he completed his last forest spray application for the day and was landing on a trailer used for transporting the helicopter. As the skids touched down on the trailer, he lowered the collective to the full down position. The helicopter abruptly tilted aft on the skid heals, and he applied up collective. The helicopter started to rotate to the right and he was unable to counter the rotation with the left anti-torque pedal. The pilot closed the throttle as the helicopter rotated 180 degrees to the right. The helicopter then contacted the side of the trailer and came to a full stop. The pilot reported that the trailer was parked on an uneven surface and that the slope and his abrupt movement of the collective resulted in the tail rotor coming into contact with the trailer. The pilot also felt that the accident could have been avoided if the trailer were on level terrain and he had waited to lower the collective until after establishing positive and complete skid contact with the surface of the trailer. The pilot reported no mechanical failures or malfunctions with the helicopter at the time of the accident.
Probable Cause: The pilot's failure to maintain tail rotor clearance while landing on a transport trailer positioned on an uneven surface.
Accident investigation:
 |
|
Sources:
NTSB WPR10CA470
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 04-Oct-2022 17:55 | ASN Update Bot | Added |
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