Incident Summary
A pilot reported that during the takeoff roll, immediately after becoming airborne, the airplane banked sharply to the left. The pilot stated, "I fought for control." The airplane then "apparently veered to the north of the runway," followed by a brief climb before descending. The pilot added, "then we were down." The airplane impacted the ground and came to rest about halfway down the runway, on the north (right) side of the runway.
Weight and Performance Calculations
Based on the aircraft, occupant, and fuel weights provided by the pilot, investigators computed that the airplane was approximately 52.5 pounds (4%) above its maximum gross weight at takeoff. At the time of the incident, the reported temperature was 72 degrees Fahrenheit and the field elevation was 3,426 feet. The density altitude was estimated at approximately 5,000 feet. At this combination of pressure altitude and temperature, the airplane's Continental C75 engine is capable of producing approximately 65 brake horsepower (BHP), which is about 13% less than its sea-level rating of 75 BHP.
Conclusion
The investigation did not state a probable cause for the accident. The incident occurred during takeoff with the aircraft exceeding its maximum gross weight and operating at a performance-reducing density altitude.