Accident Overview
On May 13, 2012, at approximately 1430 mountain standard time, a Beech F33A (registration N5521A) sustained substantial damage during takeoff at Mobile Airport (1AZ0) in Mobile, Arizona. The aircraft was registered to Airline Training Center Arizona, Inc. and operated as an instructional flight under 14 CFR Part 91. The sole occupant, a student pilot, was not injured. Visual meteorological conditions prevailed, and a company flight plan was filed. The local flight had originated from Phoenix-Goodyear Airport (GYR) in Goodyear, Arizona, about 1309.
Pilot Report
The student pilot reported practicing a series of full-stop landings and takeoffs at 1AZ0. The first three landings and takeoffs were uneventful, with light winds requiring almost no crosswind correction. However, he observed several "dust devils" near the airport and throughout the valley. As he taxied onto runway 9—a 4,500-foot long, 75-foot wide asphalt runway—the windsock indicated northerly wind from seven to eight knots, and the dust devil southeast of the airport was no longer visible.
After applying takeoff power, the airplane accelerated along the runway centerline. As the airspeed reached approximately 50 to 55 knots, the airplane suddenly yawed to the left. Despite the student pilot's control inputs, the airplane continued left and exited the runway, subsequently striking several bushes to the left of the runway.
Aircraft Examination
An FAA inspector examined the airplane and found the inboard portion of the right wing crushed aft, with additional damage observed on the right horizontal stabilizer. Flight control continuity was established throughout the airplane's primary flight control system. Examination of the nose wheel landing gear and steering linkages revealed no mechanical anomalies that would have precluded normal operation.
Weather Information
A review of recorded data from a weather station located at GYR, approximately 19 miles north of the accident site, indicated conditions at 1447: wind from 250 degrees at 10 knots, visibility 10 statute miles, few clouds at 15,000 feet, temperature 39°C, dew point -1°C, and an altimeter setting of 29.87 inches of Mercury.