What happened
The incident occurred while a student pilot was conducting a solo cross-country training flight. During the cruise portion of the flight, the engine lost total power without any prior warning or indication to the pilot. In response to the sudden loss of thrust, the pilot initiated an emergency landing procedure and selected a nearby field as the landing site.
During the approach and subsequent touchdown in the field, the aircraft collided with trees. The impact resulted in substantial damage to the airframe. There were no reports of injuries to the pilot or any other individuals involved in the accident.
The investigation
Following the accident, investigators conducted a post-crash examination of the aircraft to determine the cause of the engine failure. The inspection focused on the fuel system components to identify any mechanical issues that could have led to the loss of power.
The examination revealed that air was being drawn into the fuel system through the gascolator O-ring seal. This breach in the sealing system allowed unmetered air to enter the fuel lines, disrupting the normal flow of fuel to the engine and causing the total power loss.