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ASN Wikibase Occurrence # 39030
 
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Date:26-MAR-1998
Time:16:10
Type:Silhouette image of generic VELO model; specific model in this crash may look slightly different
Velocity 173 RG Elite
Owner/operator:private
Registration: N173VE
MSN: 301
Fatalities:Fatalities: 2 / Occupants: 2
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:N. Little Rock , AR -   United States of America
Phase: Take off
Nature:Private
Departure airport:(1M1)
Destination airport:
Investigating agency: NTSB
Narrative:
The experimental homebuilt airplane was destroyed when it impacted trees following a loss of engine power during the takeoff/initial climb. Several witnesses reported that the engine sputtered then it lost power. Post-accident metallurgical examination revealed radial and circumferential cracks on the valve seat head of the #3 exhaust valve. The combustion chamber face of the valve contained sites of surface tearing where there was a lack of fusion of the coating to the base metal. Voids at the interface between the coating and the base material contained aluminum oxide, a material used during surface preparation operation. CAUSE: Inadequate fusion between the valve stem and head due to inadequate quality control during construction of the exhaust valve for the number three cylinder. A contributing factor was the lack of suitable terrain for the forced landing

Sources:

NTSB: https://www.ntsb.gov/ntsb/brief.asp?ev_id=20001211X09662_


Revision history:

Date/timeContributorUpdates
24-Oct-2008 10:30 ASN archive Added
21-Dec-2016 19:23 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]

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