ASN Wikibase Occurrence # 385587
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| Date: | Thursday 19 July 2001 |
| Time: | 15:40 LT |
| Type: |  Hughes 369E |
| Owner/operator: | Rainbow Air, Inc. |
| Registration: | N577DB |
| MSN: | 0381E |
| Total airframe hrs: | 4588 hours |
| Engine model: | Allison 250-C20B |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Niagara Falls, NY -
 United States of America
|
| Phase: | Landing |
| Nature: | Ferry/positioning |
| Departure airport: | Niagara Falls International Airport, NY (IAG/KIAG) |
| Niagara Falls, NY | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The helicopter came to a hover over a helicopter-dolly in preparation for landing. The wind was to the front right of the helicopter as the pilot lowered the collective. As the helicopter touched down, the pilot felt that the right skid was not properly situated on the dolly. When he increased collective to reposition the helicopter, it rolled to the right, and impacted the ground. About 15 minutes after the accident, a weather facility located approximately 3 miles to the southeast of the accident site, recorded the wind as 8 knots. According to FAA AC 90-87, if a rolling moment is allowed to develop while one skid is in contact with the ground, a helicopter can exceed its critical rollover angle, and roll onto its side. The pilot had approximately 2,200 hours of total flight experience, all of which was in turbine helicopters, and about 200 hours of that was in the accident helicopter make and model.
Probable Cause: The right skid getting snagged on the helicopter-dolly resulting in dynamic rollover.
Accident investigation:
 |
|
Sources:
NTSB NYC01LA179
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 05-Apr-2024 05:46 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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