EE WAS PULLING A WELDING CART ACROSS THE UNEVEN SURFACE OUTSIDE THE MAINTENANCE SHOP. HE TRIPPED AND PULLED THE CART DOWN ON TOP OF HIMSELF. HE RECEIVED SOME BRUISES AND STRAINED THE GROIN AND STOMACH. HE CONTINUED TO WORK UNTIL 2/7/00 WHEN HE WAS SENT TO THE HOSPITAL FOR MEDICAL ATTENTION. HE RETURNED TO HIS JOB WITH SOME LIGHT DUTY MODIFICATIONS.