EE WAS IN THE BASEMENT UNHOOKING DECK PANELS FROM THE CENTER WELL HOIST THAT WERE BEING LOWERED DOWN FROM THE 3RD FLOOR. EE WAS POSTIONING ONE DECK PANEL OVER ANOTHER WHEN HE FELT PAIN IN HIS LOWER BACK. HE BEGIN MISSING WORK ON 11/29/02 DEGREE 3 CLASS 9.