Accident Hiller UH-12E N440NR, Friday 1 January 2010
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Date:Friday 1 January 2010
Type:Silhouette image of generic UH12 model; specific model in this crash may look slightly different    
Hiller UH-12E
Owner/operator:Costa Spraying Inc
Registration: N440NR
MSN: 2275
Total airframe hrs:7360 hours
Engine model:Lycoming VO-540 SERIES
Fatalities:Fatalities: 0 / Occupants: 1
Other fatalities:0
Aircraft damage: Substantial
Location:Tulare, near Tipton, California -   United States of America
Phase: Manoeuvring (airshow, firefighting, ag.ops.)
Departure airport:Tipton, CA
Destination airport:Tipton, CA
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
While maneuvering at low level over a field during an aerial application flight, the helicopter pilot took his hand off the collective to adjust the sun visor because the sun was in his eyes. The pilot reported that he had used his leg to block the collective from moving as he adjusted the visor. The helicopter hit mild turbulence and bumped his leg away from the collective. The collective slipped down, and the helicopter impacted the ground and rolled over on its side. The helicopter sustained substantial damage to the tailboom and cockpit. The pilot stated that there were no mechanical failures or malfunctions with the helicopter's flight control system or engine prior to the accident.
Probable Cause: The pilot's failure to maintain clearance from terrain.

Accident investigation:
Investigating agency: NTSB
Report number: WPR10CA094
Status: Investigation completed
Duration: 4 months
Download report: Final report




Revision history:

04-Jan-2010 08:31 slowkid Added
04-Jan-2010 11:21 RobertMB Updated [Cn]
28-May-2014 01:23 Dr. John Smith Updated [Operator, Location, Departure airport, Destination airport, Source, Narrative]
21-Dec-2016 19:25 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
26-Nov-2017 12:29 ASN Update Bot Updated [Other fatalities, Departure airport, Destination airport, Source, Narrative]

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