AN AROSOL CAN OF GREASELESS LUBRICANT LPS BRAND LEAKED ITS CONTENTS INTO THE STORAGE AREA UNDER THE BUDDY SEAT OF THE 170 TON HAUL TRUCK. A SPARK FROM THE 12 BOLT CONVERTER POWER SUPPLY IGNITE D THE AROSOL, RESULTING IN AN UNPLANNED EXPLOSION & WHICH BLEW THE BUDDY SEAT COVER/CUSHION UP ONTO THE CAB, DASH BOARD AND CAUGHT THE CONTENTS OF THE BUDDY SEAT STORAGE AREA ON FIRE. THE SMA