Accident CZAW SportCruiser N832LL, Friday 18 June 2010
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Date:Friday 18 June 2010
Time:15:30 LT
Type:Silhouette image of generic CRUZ model; specific model in this crash may look slightly different    
CZAW SportCruiser
Registration: N832LL
MSN: 07SC050
Total airframe hrs:1259 hours
Engine model:Rotax 912ULS
Fatalities:Fatalities: 0 / Occupants: 1
Other fatalities:0
Aircraft damage: Substantial
Location:Freehold, New York -   United States of America
Phase: Landing
Departure airport:Freehold, NY (1I5)
Destination airport:Freehold, NY (1I5)
Investigating agency: NTSB
Confidence Rating: Accident investigation report completed and information captured
The student pilot was practicing landings in a special light sport aircraft on an asphalt runway. After a soft touchdown, the nosegear collapsed and the airplane skidded approximately 30 feet before coming to rest on the runway. Examination of the wreckage revealed damage to the forward fuselage and firewall. The nosegear fork assembly separated from the nosegear strut on one end, and separated from the nosewheel on the other end. Further examination of the nosegear assembly revealed the fork of the assembly consisted of two aluminum fork leaves riveted together, which exhibited cracks. The inner fork leaf, which extended further than the outer leaf, had through holes for the wheel's axle. The inner fork leaf was found to also have cracks on the side opposite the one that had separated. Microscopic examination revealed that the fractures on both pieces of the inner fork leaf were due to fatigue that initiated at multiple origins. Collectively, the fatigue cracks went through the thickness of the fork leaf. The large number of fatigue cracks was consistent with the nose gear fork assembly deteriorating for an extended period of time. The cracks were of a size that could be identified by visual examination. The nosegear strut exhibited slant fractures consistent with overstress. The airplane's most recent annual inspection was completed about 3 months, and 38 hours of operation, prior to the accident.

Probable Cause: The failure of the nosegear fork assembly due to fatigue. Contributing to the accident was an inadequate recent annual inspection.

Accident investigation:
Investigating agency: NTSB
Report number: ERA10LA330
Status: Investigation completed
Duration: 11 months
Download report: Final report




Revision history:

04-Oct-2022 22:33 ASN Update Bot Added

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