Employees noticed Crosby clamps had turned. Called evacuation at 5:45am. Conducted full length inspection of rope including diameter, and connections. Changed out 9 Crosby clamps on #1 rope. Torqued to 250ft-lbs. Ran test trips. Mazella W.R. technicians completed a full length inspection, diameter check, torqued to factory spec of 430 ft-lbs. tested and documented. All ok.