What happened
Ground witnesses observed an aircraft executing a low-level aerobatic maneuver at an altitude of approximately 400 feet above ground level. During the execution of this maneuver, the airplane descended below its intended flight path and struck the chimney of a residence that was currently under construction. The impact caused a construction worker who was positioned on the roof to fall, resulting in minor injuries. No other damages or injuries were reported.
The investigation
A thorough examination of the aircraft was conducted following the incident. Investigators found no evidence of mechanical failure or malfunction within the airplane or its engine systems that could have contributed to the accident. The structural integrity of the airframe and propulsion system appeared consistent with normal operation prior to the collision.
Findings
The primary factor in this event was the loss of altitude during an aerobatic maneuver. The pilot's decision to perform low-level aerobatics near a construction site created a hazardous situation. The absence of mechanical issues indicates that the accident was likely due to pilot error or inadequate situational awareness regarding terrain and obstacles.
Safety message
Pilots performing aerobatic maneuvers must ensure sufficient altitude is maintained at all times, particularly in populated areas or near active construction sites. Awareness of surrounding obstacles and maintaining a safe buffer zone are critical for preventing ground collisions.