Cessna 182F Ground Impact During Glider Tow (N3240U)

Accident Overview and Initial Climb Out Reports A Cessna 182F impacted terrain while towing a glider on initial climb out from a private airstrip. The glider pilot reported that the tow plane pilot had taxied to and from an overhead fuel tank for refueling the aircraft. The engine was then started 30 to 40 minutes later for departure. The glider pilot stated that at an altitude of 100 to 150 feet, there was an audible drop in engine noise. ## Fueling Procedures and Tank Condition In describing his fueling procedures, the glider pilot stated that he had tried to open a petcock valve at the bottom of the overhead tank but found it difficult to turn and attempted to drain from it only once. The fuel level within the fuel storage tank was estimated to be one-quarter full. The internal wall of the tank was rusted. There was a petcock on the bottom of the tank along with a clear fuel sump drain inline with the hose. ## Post-Accident Findings and Fuel System Examination Trees which exhibited scarring on branches which were approximately 3 inches in diameter, along with the aircraft's left wingtip, were noted to be 36 feet northeast of the main wreckage. The left wing's leading edge had a 4-inch wide impression located 4 feet outboard from its wing root. Approximately 4 ounces of water from the left wing tank, 21-1/2 ounces of water from the right wing tank, and 4-1/2 ounces of water from the carburetor bowl was found. The left and right fuel screens were unobstructed. The fuel selector was at the 'BOTH' position. Samples from the fuel tank showed the presence of water when the tank sump, fuel line sump, and fuel hose were drained.