EE STATED THAT HE WAS OPERATING DIESEL SCOOP ALONG 3 NORTH ROADWAY AND RAN OVER A ROCK OR A HOLEIN ROADWAY, CAUSING HIM TO BOUNCE AROUND IN DECK. HE STARTED MISSING WORK ON 4-28-03. HE WAS DIA GNOSED AS DISC DISEASE. WE QUESTION WHETHER AN INJURY OCCURRED.