At about 10:40 Alaska daylight time, a Taylorcraft Sportsman was damaged and the pilot was injured after crashing about 16 miles from Anchorage. The pilot said he had landed at a remote strip along the Big Indian Creek and, after fishing, he departed the 1,000 foot long strip toward the west. At about 300 feet above the ground, the pilot realized he had failed to put on his headset. He turned and reached into the back of the airplane to retrieve the headset. During the process of retrieving the headset, the airplane descended wings level into the ground.