Yes.  Like many other personal injury cases, FELA cases use the comparative negligence standard.  This means a percentage of fault will be assessed against the injured railroad worker and the railroad.  Any award would then be reduced by your percentage of fault.  For example, if you suffered a severe injury and were awarded 1 million dollars, and a judge or jury determined the fault responsibility to be 25% for the injured worker and 75% for the railroad, the 1 million dollar verdict would be reduced by 25% to $750,000.