What happened
During an introductory flight, a certificated flight instructor (CFI) and a student pilot performed preflight inspections, taxiing, and various ground handling exercises. Prior to departure, the crew conducted two engine run-ups, noting no unusual indications.
Shortly after liftoff, the aircraft experienced a partial loss of engine power. Because trees and residential homes prevented a straight-ahead landing, the instructor initiated a left turn. During the emergency, the instructor checked the magnetos and fuel supply and applied carburetor heat; however, the engine continued to lose power. The pilot subsequently executed an off-airport emergency landing. Following touchdown, the aircraft's left wing struck a tree, resulting in substantial damage to the airplane. Both occupants were not injured.
The investigation
An on-scene investigation conducted by the FAA determined that the aircraft was properly fueled at the time of the accident. No engine anomalies were identified during the mechanical examination. Weather conditions at the time of the accident included a temperature of 64 degrees Fahrenheit and a dew point of 63 degrees Fahrenheit.