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ASN Wikibase Occurrence # 83242
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Type:Silhouette image of generic FDCT model; specific model in this crash may look slightly different    
Flight Design CTLS
Owner/operator:Zone Aviation
Registration: N30LK
MSN: F-09-04-08
Fatalities:Fatalities: 0 / Occupants: 2
Aircraft damage: Substantial
Location:Willard, Ohio -   United States of America
Phase: En route
Departure airport:Marysville, OH (MRT)
Destination airport:Lorain/Elyria, OH (LPR)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
During cruise flight, the pilot heard a "snap or pop" sound and then felt an engine vibration before the engine experienced a total loss of power. The pilot performed an off-airport landing to a field. A postaccident examination of the engine revealed that the No. 3 cylinder exhaust spring had experienced fatigue failure due to a non-metallic inclusion that was present at the time the spring was fabricated. The size of the inclusion was above the metallographic wire rod inspection limit used by the wire manufacturer.
Probable Cause: A total loss of engine power during cruise flight due to fatigue failure of a cylinder exhaust spring.



Accident investigation:
Investigating agency: NTSB
Status: Investigation completed
Duration: 1 year and 5 months
Download report: Final report

Revision history:

10-Dec-2010 16:57 slowkid Added
21-Dec-2016 19:25 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
26-Nov-2017 18:44 ASN Update Bot Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative, Plane category]

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