EE STATED THAT HE SLIPPED AND FELL WHILE WALKING DOWN THE #4 ENTRY (BELT ENTRY) OF #4 UNIT. THE BOTTOM WAS WET AND MUDDY, SOME ROCK HAD FELL OUT AND THERE WAS CLOSE CLEARANCE ALONG THE DMU. TH IS CREATED A DIFFICULT AREA TO WALK. THE FALL CAUSED PAIN IN HIS LEFT KNEE. EE CONTINUED EXPERIENCE PAIN & SWELLING. DETERMINED BY MRI HE HAD TORN MENISCUS. SURGERY 2/18/04 & BEGAN LOSING TIM