EMPLOYEE WAS ATTEMPTING TO MOUNT A BRACKET WALL.AN EXTENSION CORD WAS BEING UTILIZED FOR POWER TOOLS AND HAD DRAPED OVER BOTTOM STEP. EE STEPPED ON THE CORD AS HE WAS GOING UP STEPS AND SLIPPE D LANDING ON RIGHT KNEE TO GRATING SURFACE OF STEP. HE SUSTAINED 2 SMALL LACERATIONS THAT REQUIRED CLOSURE WITH SUTURES.