page_title: STS-128
section_title: 5 September (Flight Day 9 – EVA 3)
hierarchical_section_title: STS-128 / Mission timeline / 5 September (Flight Day 9 – EVA 3)
caption_attribution_description: English: European Space Agency astronaut Christer Fuglesang is visible in the reflection of NASA astronaut Danny Olivas's helmet visor during this, the STS-128 mission's third and final space-walk. Olivas and Fuglesang deployed the Payload Attachment System, replaced the Rate Gyro Assembly #2, installed two GPS antennae and worked to prepare for the installation of Node 3.
context_page_description: STS-128 was a NASA Space Shuttle mission to the International Space Station that launched on 28 August 2009. Space Shuttle Discovery carried the Multi-Purpose Logistics Module Leonardo as its primary payload. Leonardo contained a collection of experiments for studying the physics and chemistry of microgravity. Three spacewalks were carried out during the mission, which removed and replaced a materials processing experiment outside ESA's Columbus module, and returned an empty ammonia tank assembly.
  The mission's first launch attempt was delayed due to weather concerns, including multiple weather violations in NASA's launch rules, beginning over two hours before the scheduled launch. The second launch attempt, scheduled for 26 August 2009 at 01:10:22 EDT, was called off the previous evening due to an anomaly in one of the orbiter's fuel valves. The launch finally took place on 28 August 2009 at 23:59 EDT. Discovery landed on 11 September 2009 at Edwards Air Force Base, which was the last landing of a shuttle to occur at the California site.
context_section_description: During flight day 9 Danny Olivas and Christer Fuglesang performed EVA 3. The pair completed all tasks that were to be done, including installing two GPS antennas and deploying the Starboard 3 (S3) Payload Attach System (PAS), a new Rate Gyro Assembly (RGA) 2 and routing of Node 3 Avionics cables. The joint crew also completed more transfer, mostly transfer for return to Earth in the MPLM and Space Shuttle mid-deck. The ISS crew also replaced a bolt on the Common Berthing Mechanism (CBM) so that the MPLM won't get stuck, and also to ensure correct capture of the HTV.
caption: Danny Olivas during EVA 3.
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