Accident Overview
On final approach to a frozen lake surface, a ski-equipped airplane struck a telephone transmission wire with its left wing. The impact broke the wire, which then struck the vertical stabilizer, separating it from the airframe. The airplane subsequently nosed down and impacted the frozen lake surface.
Pilot Account
The pilot reported that he did not see the wire until "the last second" and that he "tried to dive under the wire." No further details about the pilot's actions or visibility conditions were provided.
Wire Markings
Examination of the telephone wire revealed that it was marked with an aviation orange spherical marker. The presence of this marker indicates the wire was equipped with a visual warning device.
Conclusion
The accident sequence involved the aircraft striking a marked wire during the approach phase, leading to structural failure of the vertical stabilizer and subsequent impact with the lake surface. No additional causal factors were identified in the report.