Feeds

Space shuttle Endeavour launch delayed until at least May 8

No power to heaters

High performance access to file storage

NASA has once again delayed the final launch of the space shuttle Endeavour, as it works to correct the electrical problem that postponed Friday's original launch attempt.

The shuttle will now launch no earlier than May 8 (next Sunday).

This past Friday, shuttle launch director Mike Leinbach scrubbed the scheduled 3:37pm eastern launch of Endeavour as engineers investigated a failure to one of the heating circuits serving an Auxiliary Power Unit (APU). The heaters prevent the APU's hydrazine from freezing while the shuttle is in orbit.

Engineers believed the problem was associated with a switchbox at the spacecraft's aft end or an electrical short in the wires that connect to the switchbox. On Saturday, engineers entered the shuttle's aft comparent to examine the malfunctioning system, and on Sunday, NASA announced that as testing continued, the shuttle would not launch on Monday as was previously indicated.

According to the NASA website, the issue seems to involve the aft load control assembly-2 (ALCA-2), a box of switches controlling power feeds. "That basically means the power is not getting out to the heaters that weren't working on launch day," Space Shuttle Program Launch Integration Manager Mike Moses said.

The six Endeavour astronauts have returned to Johnson Space Center in Houston for more training before they go back to Kennedy for the next launch attempt. ®

High performance access to file storage

More from The Register

next story
Fancy joining Reg hack on quid-a-day challenge?
Recruiting now for charity starvation diet
Red-faced LOHAN team 'fesses up in blown SPEARS fuse fiasco
Standing in the corner, big pointy 'D' hats
KILLER SPONGES menacing California coastline
Surfers are safe, crustaceans less so
Opportunity selfie: Martian winds have given the spunky ol' rover a spring cleaning
Power levels up 70 per cent as the rover keeps on truckin'
Discovery time for 200m WONDER MATERIALS shaved from 4 MILLENNIA... to 4 years
Alloy, Alloy: Boffins in speed-classification breakthrough
Elon Musk's LEAKY THRUSTER gas stalls Space Station supply run
Helium seeps from Falcon 9 first stage, delays new legs for NASA robonaut
Top Secret US payload launched into space successfully
Clandestine NRO spacecraft sets off on its unknown mission
prev story

Whitepapers

Top three mobile application threats
Learn about three of the top mobile application security threats facing businesses today and recommendations on how to mitigate the risk.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
Five 3D headsets to be won!
We were so impressed by the Durovis Dive headset we’ve asked the company to give some away to Reg readers.
SANS - Survey on application security programs
In this whitepaper learn about the state of application security programs and practices of 488 surveyed respondents, and discover how mature and effective these programs are.