BUFFALO LAKE, MN, USA
N173HA
HILLER UH-12E
WHEN THE HELICOPTER LIFTED OFF, THE LEFT TAIL ROTOR CABLE SEPARATED. DIRECTIONAL CONTROL WAS LOST AND THE AIRCRAFT COLLIDED WITH THE TERRAIN. THE PILOT REPORTED NO INJURIES, HOWEVER THE HELICOPTER SUSTAINED SUBSTANTIAL DAMAGE. AN INSPECTION OF THE LEFT TAIL ROTOR CABLE REVEALED A SEPARATION 67 INCHES AFT OF THE FORWARD CLEVIS IN AN AREA OF A PULLEY UNDER THE ENGINE. AN INSPECTION OF THE RIGHT TAIL ROTOR CABLE DISCLOSED WEAR AND FRAYING AT THE SIMILAR LOCATION.
Source: NTSB Aviation Accident Database
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