What happened
The commercial pilot was operating an agricultural aircraft for an aerial application flight. The aircraft was fully loaded at the time of departure. During the takeoff roll from a dirt strip, the aircraft lifted off prematurely. Instead of gaining altitude, it settled back onto the runway surface.
Upon contact with the ground, the left wing struck a post located near the edge of the airstrip. This impact caused the aircraft to skid sharply to the left. The aircraft then crossed an irrigation ditch before finally coming to rest in an adjacent field.
The investigation
The investigation focused on the sequence of events during the takeoff phase and the resulting damage to the airframe. Examination confirmed that the premature lift-off led directly to the loss of directional control and subsequent collision with ground obstacles. The structural integrity of the left wing was compromised by the impact with the post.
Findings
The primary factor in this accident was the premature lift-off during takeoff from a dirt strip. The full load of agricultural chemicals likely contributed to the aircraft's performance characteristics, making it difficult to maintain proper climb gradient or control after an early rotation. The presence of a post near the runway edge and an irrigation ditch exacerbated the severity of the ground contact.
Safety message
Pilots conducting aerial application operations must carefully calculate takeoff performance based on weight, density altitude, and surface conditions. Premature lift-off can lead to loss of control or collision with obstacles. Ensuring adequate airspeed before rotation is critical for safe departure from unimproved strips.