WHILE DRIVING, VEHICLE WAS INVOLVED IN A SINGLE CAR FRONT-END COLLISION. THE DRIVER SIDE AIR BAG DEPLOYED AS EXPECTED, HOWEVER SOMETHING IN THE PROCESS CAUGHT THE SLEEVE OF DRIVER'S JACKET ON FIRE. DRIVER RECEIVED SEVERE BURNS. THERE WAS AN AREA THE SIZE OF THE HOLE IN THE JACKET WHERE THE MATERIAL HAD MELTED TO THE AIR BAG. CONSUMER BELIEVES THAT THE PROPELLANT USED TO DEPLOY THE AIR BAG CAUSED THE FIRE. CONSUMER WAS ADVISED THAT THE AIR BAGS CAN DEPLOY AT TEMPERATURES OF 500 DEGREES FAHRENHEIT. HOWEVER NO SUCCESS IN CONTACTING MANUFACTURER CONCERNING THE PROBLEM. *TT *YD *NM