Technicians in the Orbiter Processing Facility help guide Discovery's airlock into the orbiter's payload bay for installation.

Technicians in the Orbiter Processing Facility help guide Discovery’s airlock into the orbiter’s payload bay for installation. The airlock is sized to accommodate two fully suited flight crew members simultaneously. Support functions include airlock depressurization and repressurization, extravehicular activity equipment recharge, liquid-cooled garment water cooling, EVA equipment checkout, and communications. Discovery is designated as the Return to Flight vehicle for mission STS-114, no earlier than March 2005. STS-114 mission is Logistics Flight 1, which is scheduled to deliver supplies and equipment plus the external stowage platform to the International Space Station.