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ASN Wikibase Occurrence # 147450
 
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Date:05-AUG-2012
Time:15:45
Type:Silhouette image of generic EXEC model; specific model in this crash may look slightly different
RotorWay Exec 90
Owner/operator:Private
Registration: N156RW
MSN: 1001.
Fatalities:Fatalities: 0 / Occupants: 1
Aircraft damage: Substantial
Category:Accident
Location:Colville, WA -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Nature:Private
Departure airport:Colville, WA (63S)
Destination airport:Colville, WA (63S)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
Narrative:
The private pilot with an airplane single-engine land rating was learning to fly his son's experimental amateur-built helicopter and had accumulated about 20 hours in type. His plan for the day was to conduct solo hover practice. After about 20 minutes of hover practice on a grass runway at the non-towered airport, he began hover-taxiing the helicopter back to its hangar. As he approached the hangar area, he realized that the helicopter had excessive speed for an upcoming turn, and the pilot tried to slow the helicopter. However, instead of just decelerating, the helicopter settled to the ground. At the time the helicopter contacted the ground, it had some lateral translation. One of the skids caught on the ground, and the helicopter rolled over onto its left side. The pilot shut down the helicopter and extracted himself. The main rotor blades, tailboom, and one skid were substantially damaged, and the pilot was uninjured. The pilot stated that there were no preaccident mechanical malfunctions or failures with the helicopter that would have precluded normal operation and that his inexperience in the helicopter resulted in his inability to control it during the taxi.
Probable Cause: The pilot's lack of experience in the helicopter, which resulted in his failure to maintain ground clearance during the taxi hover, followed by inadvertent ground contact and rollover.

Sources:

NTSB

Accident investigation:
cover
  
Investigating agency: NTSB
Status: Investigation completed
Duration: 3 months
Download report: Final report
Location


Revision history:

Date/timeContributorUpdates
06-Aug-2012 10:34 Geno Added
21-Dec-2016 19:28 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
28-Nov-2017 13:18 ASN Update Bot Updated [Other fatalities, Nature, Departure airport, Destination airport, Source, Narrative]
25-Nov-2021 17:13 harro Updated [Cn]

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