On March 18, 2005, an Air Tractor AT-602 (registration N9017Z) operated by Mcadoo Flying Service, Inc was involved in an aviation accident near Crosbyton, TX. Investigators recorded the probable cause as: The pilot's failure to maintain directional control during takeoff after encountering a dust devil. This summary draws on records from the U.S. National Transportation Safety Board (NTSB) historical archive.
A tailwheel-equipped aircraft lost directional control during takeoff roll after encountering a dust devil, despite calm wind conditions reported by the pilot.
What happened
The pilot attempted to take off from an asphalt runway measuring 3,600 feet in length and 60 feet in width. Prior to the departure, the pilot estimated that winds were blowing from the west-northwest at speeds between 5 and 7 knots. The aircraft was heavily loaded with 400 gallons of water.
As the takeoff roll commenced, the tail of the airplane lifted off the ground. Shortly thereafter, the aircraft encountered a dust devil. This sudden atmospheric disturbance caused the pilot to lose directional control of the tailwheel-equipped airplane during the critical phase of the takeoff roll.
Probable cause
The pilot's failure to maintain directional control during takeoff after encountering a dust devil.