WHILE TRAVELING AT APPROXIMATELY 40 MPH VEHICLE HYDROPLANED INTO A DITCH AND IMPACTED A TREE HEAD-ON. DRIVER'S AIR BAG FAILED TO DEPLOY. MANUFACTURER WAS SENDING AN INVESTIGATOR TO EXAMINE VEHICLE, AND DETERMINE A CAUSE FOR POOR PERFORMANCE OF AIR BAG. DRIVER EXPERIENCED LIGHT INJURIES. PLEASE PROVIDE ANY ADDITIONAL INFORMATION/ATTACHMENTS.*AK