On February 15, 2005, about 1300 Alaska standard time, a ski-equipped Bellanca 8GCBC airplane, N86911, sustained substantial damage when it collided with snow-covered terrain during takeoff from a remote area, about 26 nautical miles north-northwest of Koyukuk, Alaska. The airplane was being operated as a visual flight rules (VFR) cross-country personal flight under Title 14, CFR Part 91, when the accident occurred. The airplane was operated by the pilot. The private certificated pilot, the sole occupant, received minor injuries. Visual meteorological conditions prevailed. The flight was en route to Galena, Alaska, and no flight plan was filed, nor was one required. During a telephone conversation with the National Transportation Safety Board (NTSB) investigator-in-charge (IIC), on February 16, the pilot reported that he and a mechanic flew to a remote, snow-covered lake to repair an engine magneto on the accident airplane, which had been disabled at the lake for about one month. The lake is about 3,000 feet long. After engine repairs were completed, the engine was started, and the pilot taxied the airplane to the north end of the lake. The pilot said the snow was about 5 feet deep, and the temperature was about 40 degrees F, making the snow conditions sticky. He indicated that his departure was toward the south, and the wind was from the south, about 10 knots. He applied full engine power and began the takeoff run, which was initially slow until the skis of the airplane dropped into previously compacted ski tracks. The airplane lifted off from the snow near the south end of the lake, and climbed to about 5 feet above the snow. The pilot said he began a gentle left turn in an attempt to avoid spruce trees at the south end of the lake, but the left wingtip of the airplane brushed the snow, pulling the airplane slightly left and slowing the climb. The pilot said he knew the airplane would not clear the trees, and he landed the airplane in deep snow. The airplane rapidly decelerated and nosed down. It received structural damage to the right wing and right main landing gear.