NTSB Identification: ANC85LA004.
The docket is stored on NTSB microfiche number 26621.
Nonscheduled 14 CFR
Accident occurred Sunday, October 14, 1984 in HINCHINBROOK, AK
Aircraft: CESSNA U206, registration: N4863C
Injuries: 2 Uninjured.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

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.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

LANDING GEAR,NOSE GEAR ASSEMBLY..CORRODED

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