HINCHINBROOK, AK, USA
N4863C
CESSNA U206
INVESTIGATION REVEALED THAT THE NOSE GEAR TORQUE LINK BOLT SHEARED DURING THE LANDING ROLL ON AN ABANDONED SAND AIRSTRIP CAUSING THE GEAR COLLAPSE AND NOSEOVER. METALLURGICAL TESTING DISCLOSED EVIDENCE OF LONG TERM PROGRESSION OF SEVERE CORROSION BETWEEN THE BOLT AND IT'S SLEEVE THE ACFT HAD BEEN INVOLVED IN OPERATIONS REQUIRING MULTIPLE TAKEOFFS AND LANDINGS PER HOUR, MANY OF WHICH WERE ON SALT WTER BEACHES.
Source: NTSB Aviation Accident Database
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