ASN Wikibase Occurrence # 284105
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| Date: | Thursday 25 October 2007 |
| Time: | 09:35 LT |
| Type: |  Bell 206L-1 |
| Owner/operator: | Blackhawk Helicopters, Inc. |
| Registration: | N412KK |
| MSN: | 45277 |
| Year of manufacture: | 1979 |
| Engine model: | Allison 250-C28B |
| Fatalities: | Fatalities: 0 / Occupants: 4 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Ramona, California -
 United States of America
|
| Phase: | Unknown |
| Nature: | Survey |
| Departure airport: | Ramona Airport, CA (KRNM) |
| Ramona Airport, CA (KRNM) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The helicopter was flying at 100 feet agl and between 40 and 60 knots to assess damage to utility equipment from a recent wild fire in the area. While rolling out of a turn at 100 feet agl, the pilot noticed a reduction in airspeed. He said that he felt resistance on the controls as he applied forward cyclic and raised the collective in attempt to regain the desired airspeed and altitude. The helicopter responded by assuming a nose-high attitude. The pilot stated that a high power setting was needed to maintain altitude. The helicopter started to yaw to the right, which the pilot opined was due to the onset of loss of tail rotor effectiveness (LTE). He reduced power to counteract the LTE and the helicopter started to descend. The pilot decided to execute a precautionary landing. During the landing, the helicopter impacted trees and came to rest on it's left side. An FAA inspector responded to the accident site, examined the wreckage, and noted no mechanical anomalies with the helicopter or the control system.
Probable Cause: The pilot's failure to maintain control and correct a descent and a loss of tail rotor effectiveness while maneuvering at a low altitude and reduced airspeed.
Accident investigation:
 |
|
Sources:
NTSB LAX08CA018
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 30-Sep-2022 07:51 | ASN Update Bot | Added |
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