What happened
The incident occurred during the takeoff phase of flight on a gravel airstrip. As the aircraft accelerated down the runway for departure, it began to deviate from the intended path toward the left side of the surface. The pilot reported that the airstrip was surrounded by cornstalks, creating a confined environment with limited margin for error.
On the left side of the airstrip, there was an area of deep, loose gravel. As the aircraft moved forward, this loose material caught the left main wheel. The resistance caused by the gravel disrupted the directional control of the aircraft, causing it to swerve sharply off the paved or packed surface. The aircraft then entered the adjacent cornfield, resulting in damage to the airframe and likely rendering it unairworthy.
The investigation
Post-accident examination focused on the runway conditions and the mechanical response of the aircraft during the ground roll. Investigators noted that the airstrip was bordered by dense vegetation, specifically cornstalks, which limited visibility and escape options. The primary factor identified was the condition of the runway surface itself. The presence of deep, loose gravel on the left side of the takeoff path was confirmed as the immediate trigger for the loss of directional control.
Findings
The accident was caused by a combination of environmental factors and runway surface conditions. The loose gravel on the left side of the airstrip caught the left wheel during the critical takeoff ground roll. This event caused the aircraft to swerve off the runway and into the surrounding cornfield. The pilot's account confirms that the terrain and surface irregularities were the direct contributors to the deviation.
Safety message
Pilots operating from unpaved airstrips, particularly those with loose gravel or uneven surfaces, must be aware of the potential for directional control issues during takeoff. Ensuring adequate clearance from obstacles such as cornfields is critical when runway conditions are compromised by loose material.