Spacewalkers Mike Foreman and Robert L. Satcher Jr. have been working to deploy the outboard Payload Attach System, or PAS, on the Earth-facing side of the Starboard 3 truss. The crew has had difficulty loosening a bolt and removing a diagonal brace on the PAS. They have used a pistol grip tool and a hammer without success. Spacewalk planners hope that cooler temperatures during an upcoming night pass will contract the brace and enable it to be removed. The planned 6.5-hour spacewalk is now five hours, 16 minutes old.