Loss of control Accident Van's RV-9 N475TW,
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ASN Wikibase Occurrence # 287940
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Date:Wednesday 3 November 2010
Time:16:00 LT
Type:Silhouette image of generic RV9 model; specific model in this crash may look slightly different    
Van's RV-9
Registration: N475TW
MSN: 90475
Total airframe hrs:446 hours
Engine model:NSI EJ25
Fatalities:Fatalities: 0 / Occupants: 1
Aircraft damage: Substantial
Location:Sac City, Iowa -   United States of America
Phase: Landing
Departure airport:Effingham, IL (1H2)
Destination airport:Sac City Municipal Airport, IA (KSKI)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
According to the pilot, the weather information he obtained en route indicated that the wind at his destination airport was from 300 degrees at 25 knots. The airplane encountered turbulence and wind gusts while on final approach and, despite the pilot's control inputs, the airplane impacted terrain off the right side of the runway. The wind reported 25 miles from the accident site, about 15 minutes after the accident, was from 310 degrees at 23 knots gusting to 33 knots. The wings, firewall, and fuselage sustained substantial damage.

Probable Cause: The pilot's loss of directional control while landing with a gusting wind.

Accident investigation:
Investigating agency: NTSB
Report number: CEN11CA065
Status: Investigation completed
Duration: 5 months
Download report: Final report



History of this aircraft

Other occurrences involving this aircraft
14 October 2007 N475TW Private 0 Bigfork, Montana sub


Revision history:

04-Oct-2022 16:59 ASN Update Bot Added

Corrections or additions? ... Edit this accident description

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