TANANA, AK, USA
N7615S
Champion 7ECA
THE PILOT REPORTED THAT HE WAS USING HIS AIRPLANE TO TEND HIS TRAP LINE. SHORTLY AFTER TOUCH DOWN ON A FROZEN, SNOW COVERED LAKE, THE RIGHT MAIN GEAR AXLE BOLT (HOLDING THE SKI TO THE GEAR LEG) FAILED. THE SKI THEN SEPARATED FROM THE GEAR LEG AND THE AIRPLANE WAS FURTHER DAMAGED BEFORE IT CAME TO REST. THE PILOT BELIEVED THE AXLE BOLT HAD FAILED DUE TO THE CUMULATIVE EFFECTS OF CONSISTENTLY LANDING ON ROUGH TERRAIN. ACCORDING TO HIM, THERE WAS NO INHERENT FLAW OR DESIGN PROBLEM WITH THE AXLE BOLT.
FAILURE OF THE RIGHT MAIN GEAR AXLE BOLT.
Source: NTSB Aviation Accident Database
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