ASN Wikibase Occurrence # 195929
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| Date: | Sunday 4 June 2017 |
| Time: | 16:30 |
| Type: |  Robinson R22 |
| Owner/operator: | Private |
| Registration: | N601HA |
| MSN: | 0107 |
| Year of manufacture: | 1981 |
| Total airframe hrs: | 8856 hours |
| Engine model: | Lycoming O-320-B2C |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Kenosha Regional Airport, Kenosha, Wisconsin -
 United States of America
|
| Phase: | Take off |
| Nature: | Private |
| Departure airport: | Kenosha, WI (ENW) |
| Kenosha, WI (ENW) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
After a local flight, the commercial pilot was attempting to land the helicopter on a wooden dolly. Witnesses observed the helicopter near the ground, then it quickly climbed to 25 ft above ground level. While airborne, the helicopter wobbled and appeared unstable, then descended and impacted the ramp on its right side. Witnesses also reported that a piece of the helicopter separated during the accident sequence, which likely occurred when a tail rotor blade struck the ground. Impact marks from the tail rotor blades were found in the pavement near the main wreckage. The damage to the outboard edge of the tail rotor blade tip indicated that the helicopter was mostly upright when the blade tip contacted the ground and separated.
A postaccident examination of the accident site and wreckage revealed yellow paint transfer from the wooden landing dolly on the front right side of the helicopter. The dolly was found about 50 ft from the helicopter on the ramp. Examination of the engine and airframe did not reveal any preimpact mechanical malfunctions or failures that would have precluded normal operation. A postaccident engine test run was performed with no anomalies noted.
It is likely that, while attempting to land on the dolly, the pilot lost control of the helicopter, which descended and impacted the landing dolly and the ground.
Probable Cause: The pilot's loss of helicopter control during landing to a dolly.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: 2. FAA Registration: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=N601HA
Location
Media:
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 05-Jun-2017 08:24 | gerard57 | Added |
| 05-Jun-2017 14:51 | Geno | Updated [Time, Registration, Cn, Location, Destination airport, Source, Narrative] |
| 05-Jun-2017 15:35 | Aerossurance | Updated [Time, Aircraft type] |
| 06-Jul-2017 13:44 | Aerossurance | Updated [Phase, Departure airport, Destination airport, Source, Narrative] |
| 06-Jul-2017 13:45 | Aerossurance | Updated [Operator, Location] |
| 13-Aug-2018 17:29 | Dr.John Smith | Updated [Time, Operator, Location, Departure airport, Source, Embed code, Narrative] |
| 28-Nov-2018 14:44 | ASN Update Bot | Updated [Time, Operator, Departure airport, Destination airport, Source, Narrative, Accident report, ] |
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