20011023031999A

(-23) Airman stated that he was ill and probably should not have flown on the day of the accident. He also said that he was practicing a short-field takeoff using 20 degrees of flaps. As soon as the aircraft lifted off, he lowered the nose in order to accelerated, and while still close to the runway he looked inside to retrim the aircraft. While he was looking inside he heard a loud noise. He said this particular aircraft had a history of engine problems and since he didn't know what caused the noise, he concentrated initially on the engine instruments. The instrument indications were all normal and the aircraft flew normally. He failed to detect the damage for a period of time, but when he did notice it he landed at the nearest airport and called the company mechanic in kotzebue. After discussing it with the mechanic, he elected to fly the aircraft from kiana, Alaska to kotzebue, Alaska, without repairing the damage and without obtaining a ferry permit. The previously mentioned loud noise was the sound of the right wing striking a tree alongside the runway. (.19) on October 13, 2001, about 1300 Alaska daylight time, a Cessna 207A airplane, N7384U, sustained substantial damage during takeoff from Kobuk, Alaska. The airplane was being operated as a visual flight rules (VFR) cross-country positioning flight under title 14, CFR part 91, when the accident occurred. The airplane was operated by flight Alaska inc., anchorage, Alaska. The commercial certificated pilot, the sole occupant, was not injured. Visual meteorological conditions prevailed. VFR company flight following procedures were in effect. The intended destination was kotzebue, Alaska. During a telephone conversation with the national transportation safety board (NTSB) investigator-in-charge (iic), on November 8, 2001, the federal aviation administration (FAA) principle operations inspector (poi) for the company reported he was notified by the operator on November 7, of damage to the right wing of the accident airplane. In a subsequent telephone conversation with the company's director of operations, the NTSB iic learned that the pilot reportedly told company personnel he collided with an unknown object as he departed Kobuk. While in cruise flight after departure from Kobuk, the pilot noticed damage to the leading edge of the right wing. He then landed at kiana, Alaska, and telephoned a company mechanic in kotzebue. After a discussion with the mechanic, the pilot departed kiana and landed at kotzebue. The director of operations said that the initial report from company personnel in kotzebue attributed the wing damage to a bird strike. The director of operations said that maintenance personnel in kotzebue determined the wing damage was greater than minor. A temporary patch was fashioned, and the airplane was ferried to the company maintenance facility in anchorage on October 14. When repairs were started on November 2, company maintenance personnel noted that the impact location on the right wing contained wood splinters. During a visit with the NTSB iic on November 30, the pilot said he departed runway 27 at Kobuk. During the takeoff, he heard a loud bang, but said he did not see what he struck. He produced photographs of the damaged wing. The wing, just outboard of the lift strut, had aft crushing and tearing of the leading edge material. Company maintenance personnel reported the wing repair consisted of replacement of the leading edge.