What happened
During the initial phase of a takeoff roll, the pilot observed erratic readings on the airspeed indicator. The indication quickly dropped to zero, prompting the pilot to abort the takeoff. In an attempt to stop the aircraft, the pilot executed a high-speed turn to the left while still on the runway surface. This maneuver resulted in the collapse of the nose landing gear and caused substantial damage to the airplane.
The investigation
A post-accident examination of the aircraft revealed that the pitot static system was obstructed. The blockage was identified as an insect nest located within the system components, which prevented accurate pressure readings from reaching the airspeed indicator.
Findings
The erratic and subsequent zero airspeed indication was directly caused by the obstruction of the pitot static system. An insect nest blocked the system, leading to unreliable instrument data during a critical phase of flight. The pilot's decision to abort the takeoff was immediate upon noticing the instrument anomaly. However, the high-speed turn attempted to correct the situation resulted in structural failure of the nose gear.
Safety message
Regular preflight inspections should include checking pitot tubes and static ports for obstructions, including nests or debris, especially in areas with high insect activity.