YOUNGSTOWN, OH, USA
N6178X
AERO COMMANDER 500B
WHILE CRUISING AT 5000 FT MSL, THE PLT HEARD A 'VERY LOUD BANG' & NOTED 'VERY MUCH VIBRATION FROM THE LEFT ENG.' HE SHUT DOWN & FEATHERED THE LEFT ENG & PROP. WHEN THE ENG STOPPED TURNING, HE NOTED 1 PROP BLADE WAS MISSING. THE ACFT WAS LANDED WITHOUT FURTHER INCIDENT. AN EXAM REVEALED THAT A HARTZELL MODEL HC-A3VK-2 BLADE CLAMP, PN C-3, & A PILOT TUBE ON THE 3 BLADED PROP HAD FAILED FROM FATIGUE. ALSO, IT WAS NOTED THAT THE MOTOR MOUNTS BROKE LOOSE & THE GENERATOR BROKE LOOSE & SEPARATED. ULTIMATELY, THE GENERATOR FELL ON A PARKED AUTOMOBILE.
Source: NTSB Aviation Accident Database
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