What happened
The pilot was conducting practice maneuvers for forced landings when the aircraft's engine ceased operation. This failure occurred during a controlled gliding descent with the engine set to flight idle. Upon attempting to restart or maintain power, the engine did not respond to throttle inputs.
With power unavailable, the pilot initiated an emergency landing procedure on a nearby road. During the final flare phase of the landing attempt, the aircraft's empennage struck a fence located near the intended touchdown zone. This impact caused substantial damage to the airframe.
The investigation
Examination of the conditions surrounding the event revealed environmental factors conducive to mechanical failure. The atmospheric temperature and dew point spread were favorable for the development of serious carburetor icing. This condition likely contributed to the engine's inability to respond to throttle application during the critical phase of the maneuver.
Findings
The sequence of events indicates that the loss of power was not due to pilot error in execution but rather an environmental hazard affecting the engine's operation. The decision to attempt a landing on a road was a direct response to the sudden loss of propulsion. The subsequent damage was a result of the inability to complete the landing flare without adequate control authority or altitude.
Safety message
Pilots practicing forced landings must remain vigilant regarding weather conditions that promote carburetor icing. Even during short practice descents, the risk of ice accumulation can compromise engine performance unexpectedly.