On February 8, 1999, about 1520 eastern standard time, a Cessna 152, N6294M, registered to Sanford Aircraft Services Inc., operating as a 14 CFR Part 91 instructional flight, crashed during a go-around at the Sanford-Lee County Brick Field (Regional) Airport, Sanford, North Carolina. Visual meteorological conditions prevailed and no flight plan was filed. The airplane sustained substantial damage. The student pilot reported no injuries. The flight was originating at the time of the accident. The student pilot stated she conducted a preflight inspection of the airplane before departing on the flight, and noted no deficiencies with the airframe, flight controls, or during the engine run-up. She departed and remained in left closed traffic, and conducted about three to four touch-and-go landings before the accident occurred. She had just landed on runway 03 and initiated another touch-and-go by raising the flaps, pushing the carburetor heat in, and advancing the throttle to the full open position. The airplane started to veer to the left, and she applied right rudder. The airplane continued to veer to the left, and she applied full right rudder with no response. The airplane went off the left side of the runway into the grass, down and up a dip before she pulled the power off. The airplane crossed a taxiway and she applied brakes and aft pressure on the control yoke. The airplane continued off the left side of the taxiway, collided with a ditch, and nosed over inverted. Examination of the aircraft by the FAA revealed no evidence of a precrash mechanical failure or malfunction.