Feeds

Space shuttle Endeavour launch delayed until at least May 8

No power to heaters

Intelligent flash storage arrays

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. ®

Providing a secure and efficient Helpdesk

More from The Register

next story
SECRET U.S. 'SPACE WARPLANE' set to return from SPY MISSION
Robot minishuttle X-37B returns after almost 2 years in orbit
No sail: NASA spikes Sunjammer
'Solar sail' demonstrator project binned
LOHAN crash lands on CNN
Overflies Die Welt en route to lively US news vid
You can crunch it all you like, but the answer is NOT always in the data
Hear that, 'data journalists'? Our analytics prof holds forth
Experts brand LOHAN's squeaky-clean box
Phytosanitary treatment renders Vulture 2 crate fit for export
Carry On Cosmonaut: Willful Child is a poor taste Star Trek parody
Cringeworthy, crude and crass jokes abound in Steven Erikson’s sci-fi debut
Origins of SEXUAL INTERCOURSE fished out of SCOTTISH LAKE
Fossil find proves it first happened 385 million years ago
America's super-secret X-37B plane returns to Earth after nearly TWO YEARS aloft
674 days in space for US Air Force's mystery orbital vehicle
prev story

Whitepapers

Forging a new future with identity relationship management
Learn about ForgeRock's next generation IRM platform and how it is designed to empower CEOS's and enterprises to engage with consumers.
Cloud and hybrid-cloud data protection for VMware
Learn how quick and easy it is to configure backups and perform restores for VMware environments.
Three 1TB solid state scorchers up for grabs
Big SSDs can be expensive but think big and think free because you could be the lucky winner of one of three 1TB Samsung SSD 840 EVO drives that we’re giving away worth over £300 apiece.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.