51.   Using remote commands, Davis and Robinson twice successfully commanded the robot arm to unlatch and lift a two-foot-square metal box.

52.   When Chawla attempted to quickly retrieve the spacecraft with the robot arm, it slipped from the grasp of the mechanical device.

53.   When the task is complete, the rail car will be ready to serve as the new anchoring mechanism for the robot arm.

54.   When those astronauts attempted a fast-paced retrieval, the robot arm struck the satellite sending it into a slow tumble.

55.   When the tip of the robot arm bumped Spartan, sending it into a slow spin.

56.   With Nicollier working on the robot arm, the spacewalkers removed an older sensor and tried to slide the new one into place along a set of guiderails.

57.   Without the fast-paced verification, the robot arm begins to power itself off.

58.   Working closely with the spacewalkers were Endeavour pilot Brent Jett and Japanese astronaut Koichi Wakata, who operated the robot arm.

59.   A newly installed robot arm encountered start-up problems in May that took weeks to resolve.

60.   A newly installed robot arm had start-up problems in May that took weeks to resolve.