PE-00-02O; REPLACEMENT TIRES FOR A 1992 MERCURY, GRAND MARQUIS, TIRE FIRESTONE MODEL FR360, TIRE SIZE P21575R15, DOT NUMBER STARTED WITH HYN3, TIRES HAD LESS THEN ONE THOUSAND MILES ON THEM. WHEN DRIVING CONSUMER NOTICED VEHICLE PULLING TO THE LEFT, CONSUMER ADJUSTED THE STEERING WHEEL, AND LOST CONTROL OF VEHICLE, HITTING A GUARDRAIL. TOTALED VEHICLE. CONSUMER NOT SURE IF THE TIRES WERE THE CAUSE OF THE PROBLEM, BUT NOTED THAT TIRES WAS SHOWING EVIDENCE OF CRACKS, AND SPLITS. ONE INJURY DUE TO DEFECT. *AK *MJS