In Orbiter Processing Facility-3 at NASA’s Kennedy Space Center in Florida, crews have completed pressurization of space shuttle Discovery’s auxiliary power units 1, 2, and 3 gearboxes. Freon coolant loop top-off and main engine dome heat shield installations also were successfully completed yesterday.
The six STS-133 crew members will rehearse procedures for the mission’s second spacewalk in the Neutral Buoyancy Laboratory near NASA’s Johnson Space Center in Houston today.