REDMOND, WA, USA
N32415
VERBEEK ROTORWAY
THE PLT STATED THAT WHILE AT CRUISE THE ACFT DEVELOPED A VIBRATION AND NOISE, FOLLOWED BY A POWER LOS. THE PLT THEN ENTERED INTO AN AUTOROTATION AND LANDED ONTO A ROUGH FIELD. THE ACFT TOUCHED DOWN HARD AND THEN ROLLED ONTO ITS SIDE. DURING ENGINE INSPECTION THE DRIVE PULLEY WAS FOUND TO HAVE FAILED.
Source: NTSB Aviation Accident Database
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