E WAS OPERATING A JOY 21SC SHUTTLE CAR IN THE #2 ENTRY, TWO CROSSCUTS INBY SPAD 12473 TRAVELING TOWARDS THE FACE. WHEN THE SC HIT A HOLE IN THE ROADWAY, THE IMPACT JARRED HIS BACK RESULTING IN PAIN IN HIS LOWER BACK AND HIP AREA. EE'S FIRST DAY AWAY FROM WORK WAS JAN 8, 2003.