Bridgestone Firestone announced a recall of 27,000 tires in North America in connection with a tread separation problem, the same flaw that prompted a massive recall of its tires four years ago. The suspect tires have been shown to be prone to tread separation that "can, in rare instances, lead to a loss of control of a vehicle and a possible crash," the company said in a statement. The problem has been cited in nine accidents that have led to lawsuits, one of them fatal. The company said the tire implicated in that accident had been through a botched repair job. In the other cases, motorists suffered whiplash. broken bones and minor cuts and bruises because of tire failure. The voluntary recall covers 25,600 Bridgestone Dueler A/T tires that were sold in the United States, and an additional 1,400 sold in Canada. These tires were manufactured in Japan by parent company Bridgestone.