HORSEHEADS, NY, USA
N68CG
ROBBINS BREEZY CG-1
THE PLT WAS PERFORMING A HIGH SPEED TAXI TEST AFTER THE HOMEBUILT ACFT WAS ASSEMBLED. WITNESSES STATED THE ACFT LIFTED OFF, THEN PITCHED UP 'IN A NEAR VERTICAL ATTITUDE . . . NOSED OVER AND STRUCK THE GROUND. . .' A POST-ACDNT INVESTIGATION REVEALED THAT ALL CONTROL SURFACES WERE INTACT. THE DOWN ELEVATOR CABLE WAS FOUND TO HAVE FAILED DURING THE OCCURRENCE; HOWEVER, A METALLURGICAL EXAM OF THE FRACTURE SURFACES REVEALED EVIDENCE OF OVERSTRESS (OVERLOAD) FAILURE. IMPACT DAMAGE OF THE AIRFRAME OCCURRED IN THE AREA WHERE THE DOWN ELEVATOR CABLE HAD FAILED. NO REASON WAS FOUND FOR THE CABLE TO HAVE BEEN OVERLOADED, EXCEPT FOR IMPACT STRESSES.
THE LOSS OF AIRCRAFT CONTROL DURING HIGH SPEED TAXI FOR AN UNKNOWN REASON.
Source: NTSB Aviation Accident Database
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