EE STATES THAT HE WAS GIVEN THE ASSIGNMENT OF REMOVING THE OUT-OF-SERVICE CLEAN COAL FILTER ON THE 2NE FLOOR OF THE PLANT. HE HAD REPORTED TO THE LOCATION AT THE START OF HIS SHIFT AND WAS PRE PARING TO DISASSEMBLE THE UNIT. HE PICKED UP A PIECE OF TOE-BOARD ABOUT 5-6' LONG AND TOSSED IT OUT OF THE WORK AREA. WHEN HE TOSSED THE THIN PIECE OF METAL, IT REAKED ACROSS THE PALM OF HIS