CASA GRANDE, AZ, USA
N5287U
Widner RV-3A
Prior to departure on runway 5, the pilot checked the windsock and noted a 90-degree crosswind at speeds from 5 to 10 mph. He made the decision to continue with the departure. During the takeoff roll, he became distracted after he heard another airplane radio intentions to land on runway 23 and he looked up to find the traffic. The pilot stated that the airplane weathervaned 45 degrees into the wind, veered off the runway, and nosed over.
On May 6, 1999, at 1550 hours mountain standard time, an experimental Widner RV-3A, N5287U, veered off runway 5 and nosed over during the takeoff ground roll at the Casa Grande, Arizona, airport. The airplane, owned and operated by the pilot under 14 CFR Part 91, sustained substantial damage. The commercial pilot, the sole occupant, sustained minor injuries. Visual meteorological conditions existed for the personal cross-country flight that originated from the Needles, California, airport the day of the accident and had made an en-route fuel stop at Casa Grande. The flight was scheduled to terminate at the Deming, New Mexico, airport. The closest official aviation weather observation station is the Phoenix, Arizona, airport, which is 31 nautical miles north of Casa Grande. Reported winds at Phoenix during the time of the accident were variable at 3 knots. The pilot and ground witnesses estimated the winds at Casa Grande to be from 300 degrees at 5 to 10 miles per hour. The pilot stated that he had stopped at Casa Grande airport for fuel. He checked the windsock before departure and noted a 90-degree crosswind. He stated that the wind was not "excessively high" and decided that he could still depart from runway 5. During the takeoff roll, he heard another plane radio their intentions of landing on runway 23. He glanced up for a second to look for the traffic, and the plane weathervaned 45 degrees into the wind. He made an unsuccessful attempt to get the airplane airborne; however, the airplane departed the runway surface into a field where it subsequently nosed over.
The pilot's inadequate compensation for the existing crosswind condition and his subsequent failure to maintain directional control during the takeoff roll. The pilot's distraction in looking for the aircraft which announced an intention to land in the opposite direction was a factor in the accident.
Source: NTSB Aviation Accident Database
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