THIS EE HAD SURGERY FOR CARPAL TUNNEL. HE CAME BACK TO WORK ON 7-17 ON RESTRICTED DUTY. THIS INDIVIDUAL LOADS SAND INTO RR CARS & SEMIS. HE DOES THIS IN FRONT OF A CONTROL PANEL. HE USES SCREE N SIEVES & PUSHES BUTTONS. HE DOES PAPER WORK & USES A COMPUTER.