1.   Guest American astronaut Jerry Linenger and his two cosmonaut hosts will use the tools to try and repair a leaky cooling system and a device that generates breathing oxygen.

2.   Most of the work is in reassembly, cleaning, inspections and repairing leaky hydraulic systems.

3.   The easy reading is a street-smart sidebar story on the life of one probation officer trying to stick her finger in the dike of a leaky system.

4.   The space agency has replaced a rocket engine, repaired external cables and wiring, fixed a leaky hydraulic system and replaced a dented fuel line.

5.   The crew wears masks when working near the leaky system.

6.   The mission was marked by technical glitches, beginning with the discovery of a leaky steering system that officials said posed no problem.