REAR TIRE FAILURE CAUSED LOSS OF CONTROL OF VEHICLE. 45 MPH SPEED AT TIME OF INCIDENT. NO STEERING CONTROL ONCE REAR TIRE DEFLATED. ROAD CONDITIONS WERE DAMP ROAD, ASPHALT SURFACE WITH SOME SAND ON THE SURFACE. ON-RAMP ONTO FREEWAY WITH 45 MPH SPEED LIMIT. VEHICLE TURNED RIGHT 90 DEGREES AFTER TIRE FAILURE AND LEFT THE ROADWAY. VEHICLE WAS A TOTAL LOSS. *AK( DOT NUMBER: TIRE SIZE: P19565T15 )