E ngineers have completed work to replace the fixer alignment component on Atlantis docking mechanism. The HUD provides visual alignment cues to Shuttle commanders and pilots during approach and landing. To accommodate the unplanned HUD work, Atlantis will now roll to the VAB Sunday, May 20 instead of May 16. A tlantis main engine heat shields are installed. Today, Russian engineers are replacing the fixer component on the orbiter docking system.
Work continues on the heads-up display unit in the crew module.
Routine orbiter subsystem tests are ongoing. A tlantis main propulsion system leak checks are complete and engine heat shields are being installed. Technicians are now conducting functional tests of the waste control system and servicing the orbiter s ammonia system. Workers are also adjusting the heads-up display unit in the crew module. Russian engineers will begin work to replace an alignment fixer on Atlantis docking mechanism Monday.