EE WAS CARRYING CARDBOARD BUCKETS OF GEAR OIL FROM A CLEANUP OF SPILLED OIL FROM INSIDE THE DRAGLINE TO A DISPOSAL BARREL OUTSIDE. EE STATES HER FOOT SLIPPED ON THE TOP STEP OF A 3 STEP STAIRW AY & SPRAINED HER LEFT ANKLE. EE STATES IT WAS RAINING & THE BOTTOM OF HER BOOTS MAY HAVE BEEN WET CAUSING HER TO SLIP. SHE WAS WEARING RUBBER OVER SHOES AT THE TIME.