Loss of control Accident Skykits Savannah ADV N5089F, Thursday 19 April 2012
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Date:Thursday 19 April 2012
Type:Silhouette image of generic SVNH model; specific model in this crash may look slightly different    
Skykits Savannah ADV
Registration: N5089F
MSN: 05-10-51-427
Year of manufacture:2006
Total airframe hrs:630 hours
Engine model:Rotax 912ULS
Fatalities:Fatalities: 0 / Occupants: 1
Other fatalities:0
Aircraft damage: Substantial
Location:Near Dairy Road, O\'okala, Big Island, HI -   United States of America
Phase: En route
Departure airport:Hawi, HI (UPP)
Destination airport:Hilo, HI (ITO)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
The owner/pilot topped off both fuel tanks in the special light-sport airplane, flew uneventfully to another airport, and departed shortly thereafter. About 75 minutes after the initial departure, while in cruise flight at an altitude that the pilot estimated as between 2,500 and 3,000 feet, the engine lost power. Due in part to the airplane’s low altitude, the pilot did not attempt any corrective actions, and focused on finding a suitable landing location. The pilot selected a young cornfield for the landing but stalled the airplane a few feet above the ground, which resulted in a near vertical impact trajectory in a flat attitude. The pilot reported that he believed that the power loss was due to asymmetric fuel feed from the two wing-mounted fuel tanks due to a plugged fuel vent in the left tank. Although the fuel vents were not examined, no mechanical failures or deficiencies that would have precluded continued engine operation were observed during examination of the airplane. Accordingly, the investigation did not determine a specific reason for the power loss, or the specific reason(s) why the pilot stalled the airplane.

Probable Cause: A loss of engine power during cruise for reasons that could not be determined because postaccident examination did not reveal any anomalies that would have precluded normal operation. Contributing to the accident was the pilot’s failure to avoid an aerodynamic stall at low altitude during the forced landing.

Accident investigation:
Investigating agency: NTSB
Report number: WPR12LA176
Status: Investigation completed
Duration: 2 years and 5 months
Download report: Final report




Revision history:

20-Apr-2012 00:28 gerard57 Added
20-Apr-2012 00:48 RobertMB Updated [Time, Aircraft type, Registration, Cn, Operator, Location, Source, Narrative, Plane category, ]
02-May-2012 11:02 Geno Updated [Time, Aircraft type, Departure airport, Source, Damage, Narrative, Plane category, ]
21-Dec-2016 19:28 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
27-Nov-2017 20:35 ASN Update Bot Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative]

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