TL*THE CONTACT OWNS A 2003 GMC ENVOY. WHILE DRIVING 55 MPH, THE CONTACT DRIVE INTO A DITCH. THERE WAS WHITE POWDER ON THE STEERING WHEEL; HOWEVER, THE AIR BAGS FAILED TO DEPLOY. THE DRIVER WAS WEARING A SEAT BELT, BUT SUSTAINED BACK INJURIES. THE VEHICLE WAS TOWED TO HER RESIDENCE. THE FRONT END OF THE VEHICLE WAS DAMAGED. THE VEHICLE HAS NOT BEEN INSPECTED. THE CURRENT AND FAILURE MILEAGES WERE 50,318.