EE STATED THAT HE STEPPED OUT IN THE CENTER OF THE ENTRY TO CHECK THE CENTER LINE WHILE OPERATING THE CONINUOUS MINER IN THE FACE OF #2 CROSS CUT RIGHT. HE STATED THAT HE WAS WALKING BACK TO T HE OPERATORS SIDE OF THE CONTINUOUS MINER WHEN HE SLIPPED ON THE MINE FLOOR AND FELL ON HIS LEFT KNEE.