Shuttle Columbia delayed at least a week after hydraulic issue
Cape Canaveral AP The space shuttle Columbia awaiting launch faced a postponement of at least seven days as two auxiliary power units showed possible lubricant contamination. NASA teams drained propellants and inspected APUs after a late fuel tank pressure problem and a 31 second countdown failure. Astronauts Engle and Truly rehearsed landings while weather and Hurricane Katrina shadowed the plan.