STS-134: Launch slips to NET May 8 as APU troubleshooting finds LCA fault
May 1st, 2011 by Chris BerginEndeavour’s critical – and final – mission to the International Space Station (ISS) has been delayed until at least May 8, following an engineering evaluation into her Auxiliary Power Unit 1 (APU-1), which suffered from a heater problem, breaking Launch Commit Criteria rules. The investigation found the root cause relates to a hybrid driver inside the (Load Control Assembly), requiring the lengthy process of removing and replacing the box.
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1855 GMT (2:55 p.m. EDT)
We've posted a YouTube video showing technicians working inside shuttle Endeavour's cramped aft compartment this morning.
1825 GMT (2:25 p.m. EDT)
Endeavour's astronauts will be getting back into the Houston simulators for some refresher training before they return to Kennedy Space Center later this week.
1820 GMT (2:20 p.m. EDT)
The launch team are breaking out of the countdown sequence and will be starting all over again three days before next liftoff attempt.
1816 GMT (2:16 p.m. EDT)
The old Aft Load Control Assembly No. 2 box will come out of Endeavour tomorrow and be sent to the malfunction laboratory for study. The new box gets installed on Tuesday. The system retesting then takes two full days, shuttle launch director Mike Leinbach says.
With your free time you can view some of NASA's HD videos.
An idea born in unsettled times becomes a feat of engineering excellence. The most complex machine ever built to bring humans to and from space and eventually, construct the next stop on the road to space exploration.
The NASA TV web page has a UStream viewing connection, which worked well for me.
NASA Television Now in HD
NASA TV now has a full-time HD Channel available at no cost to cable and satellite service providers. Live coverage of space shuttle missions, on-orbit video of Earth captured by astronauts aboard the International Space Station, and rocket launches of advanced scientific spacecraft are among the programming offered on NASA HD. Also available are imagery from NASA’s vast array of space satellites, as well as media briefings, presentations by expert lecturers, astronaut interviews and other special events, all in the improved detail and clarity of high-definition.
The Press update on the repair schedule was viewing as I wrote this with 600 viewers on-line.
A variety of vehicles, launch sites on both U.S. coasts, shifting dates and times... the NASA Launch Schedule is easy to decipher by checking out our Launch Schedule 101 that explains how it all works!
Updated -- May 1, 2011 - 2:30 p.m. EDT
Date: May 8* Mission: STS-134 Launch Vehicle:Space Shuttle Endeavour Launch Site: Kennedy Space Center - Launch Pad 39A STS-134 Description: Space shuttle Endeavour will deliver the Express Logistics Carrier-3 (ELC-3) and the Alpha Magnetic Spectrometer (AMS) to the International Space Station.
Date: June 9 * Mission: Aquarius Launch Vehicle:United Launch Alliance Delta II 7320 Launch Site: Vandenberg Air Force Base - SLC 2 Launch Time: 7:20:13 - 7:25:13 a.m. PDT / 10:20:13 - 10:25:13 a.m. EDT Description: The Aquarius mission will measure ocean surface salinity to understand the links between ocean circulation, global water cycle and climate.
Date: June 28 + Mission: STS-135 Launch Vehicle:Space Shuttle Atlantis Launch Site: Kennedy Space Center - Launch Pad 39A Launch Time: 3:40 p.m. EDT Description: Space shuttle Atlantis will carry the Raffaello multipurpose logistics module to deliver supplies, logistics and spare parts to the International Space Station. Atlantis also will fly a system to investigate the potential for robotically refueling existing spacecraft and return a failed ammonia pump module.