WHILE OPERATING A JEEP ON THE HAULAGE THE JEEP DE-RAILED. EE WAS THROWN AGAINST THE SANDING DEVICE HANDLE BRUISING HIS RIBS. HE CONTINUED TO WORK UNTIL 10/14/03 WHEN HE WAS TAKEN OFF WORK FOR SEVERE BACK SPASMS. IT IS BELEIVED THAT HE MAY HAVE A CONPRESSION FRACTURE OF A VERTABRAE.