NTSB Identification: CEN12CA416
14 CFR Part 91: General Aviation
Accident occurred Thursday, June 28, 2012 in Omaha, NE
Probable Cause Approval Date: 10/09/2012
Aircraft: MICHAEL A HOWARD DOMINATOR, registration: N447PM
Injuries: 1 Minor.
NTSB investigators used data provided by various entities, including, but not limited to, the Federal Aviation Administration and/or the operator and did not travel in support of this investigation to prepare this aircraft accident report.
The pilot, who was also the builder, was conducting flight testing on the newly built gyrocopter. He reported that he spun the rotor up to about 110 rpm and was attempting to accelerate the rotor to flight rpm by moving down the runway. The pilot added that he was going about 25 mph when the nosewheel hit a bump in the runway and started to shimmy. He immediately reduced the throttle to slow down; however, the nosewheel strut failed, and the gyrocopter turned left, rolled over, and came to rest on its right side. During the rollover, the rotor blades and fuselage sustained substantial damage.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: A nosewheel shimmy on takeoff, which resulted in the failure of the nosewheel landing gear and a loss of control. Full narrative available
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