THE EE WAS INSPECTING RAILCARS BEFORE LOADING. TH EEE WAS WALKING ALONGSIDE ON THE THE TRACK RAILS. WHILE WALKING THE EE WAS WATCHING ANOTHER EE INSPECT THE TOP OF THE CARS. THE EE DID NOT WATCH WHERE HE WAS WALKING, STEPPED ON A TRACK RAIL & SLIPPED. HE DID NOT FALL BUT HE STATED THAT THE SLIP JARRED HIS LOWER BACK.