ASN Wikibase Occurrence # 201053
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| Date: | Monday 6 November 2017 |
| Time: | 13:10 |
| Type: |  Robinson R44 Astro |
| Owner/operator: | Private |
| Registration: | N7085M |
| MSN: | 0430 |
| Year of manufacture: | 1998 |
| Total airframe hrs: | 2042 hours |
| Engine model: | Lycoming O-540-F185 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Inwood field, Iowa -
 United States of America
|
| Phase: | Manoeuvring (airshow, firefighting, ag.ops.) |
| Nature: | Survey |
| Departure airport: | Larchwood, IA |
| Larchwood, IA | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The commercial pilot was conducting a helicopter flight to assist with herding cattle that had gotten loose. According to multiple witnesses on the ground, the helicopter impacted powerlines and then terrain. Video of the accident showed the helicopter facing away from the powerlines at the time of the collision with the powerlines.
A postaccident examination of the airframe and engine revealed no mechanical anomalies that would have precluded normal operation at the time of the accident. The witnesses on the ground indicated that there was unlimited visibility and no precipitation at the time of the accident. Thus, the pilot was likely focused on the cattle and lost situational awareness regarding the helicopter’s proximity to the powerlines, which resulted in the collision with the powerlines and terrain.
Probable Cause: The pilot's loss of situational awareness, which resulted in his failure to maintain adequate clearance from powerlines.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=N7085M
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 07-Nov-2017 16:53 | gerard57 | Added |
| 07-Nov-2017 16:54 | harro | Updated [Aircraft type, Registration, Cn, Operator, Source, Damage] |
| 07-Nov-2017 18:42 | Geno | Updated [Aircraft type, Phase, Nature, Source] |
| 28-Nov-2018 14:46 | ASN Update Bot | Updated [Time, Operator, Nature, Departure airport, Destination airport, Source, Narrative, Accident report, ] |
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