Incident Overview
A pilot reported that shortly after takeoff, at approximately 150 feet above ground level, the engine began to lose power. Unable to maintain flight, the pilot attempted an emergency landing. The landing resulted in substantial damage to the aircraft and serious and minor injuries to its occupants.
Post-Accident Investigation
Examination following the accident found that the engine's air induction system was obstructed by a field mouse nest, causing an almost complete restriction of airflow into the engine. The location of the nest made it impossible to visually identify the restriction during the preflight inspection.
Pilot's Account
The pilot stated that the pre-takeoff runup was satisfactory. However, he theorized that during takeoff on the rough private strip, the nest became dislodged and was drawn further into the induction system and carburetor, leading to the loss of power.