Feeds

ISS suffers coolant pump failure

'No danger' from ammonia system breakdown

Top 5 reasons to deploy VMware with Tegile

The International Space Station's crew is "not in any danger" following the failure of an ammonia cooling loop pump on Saturday night.

NASA explains that a circuit breaker trip preceded the breakdown of the "Pump Module for loop A that feeds ammonia to maintain the proper cooling for systems and avionics", just before midnight GMT.

The agency says that "an attempt overnight Sunday to close the circuit breaker and restart the Pump Module was not successful", but assures: "The station is in a stable configuration with most systems receiving cooling and many systems operating with redundancy following the installation of jumper cables from the Destiny Lab’s power system overnight."

Expedition crew members Doug Wheelock and Tracy Caldwell Dyson were due to venture outside the orbiting outpost on Thursday to "install a power extension cable to the Unity module prior to the delivery of the Permanent Multipurpose Module on the STS-133 mission in November and to install a Power and Data Grapple Fixture to the Zarya module to support future robotics work".

This, though, will now be deferred to a later date. Caldwell Dyson and Wheelock will instead be tasked with swapping out the failed Pump Module, which sits on the station’s S1 truss. There are a couple of spares sitting on external stowage platforms, and it will require two spacewalks to first fit the new unit, then connect up fluid and electrical lines.

NASA has more on the pump failure here. ®

Beginner's guide to SSL certificates

More from The Register

next story
PORTAL TO ELSEWHERE scried in small galaxy far, far away
Supermassive black hole dominates titchy star formation
Boffins say they've got Lithium batteries the wrong way around
Surprises at the nano-scale mean our ideas about how they charge could be all wrong
Edge Research Lab to tackle chilly LOHAN's final test flight
Our US allies to probe potential Vulture 2 servo freeze
Europe prepares to INVADE comet: Rosetta landing site chosen
No word yet on whether backup site is labelled 'K'
Cracked it - Vulture 2 power podule fires servos for 4 HOURS
Pixhawk avionics juice issue sorted, onwards to Spaceport America
Archaeologists and robots on hunt for more Antikythera pieces
How much of the world's oldest computer can they find?
prev story

Whitepapers

Secure remote control for conventional and virtual desktops
Balancing user privacy and privileged access, in accordance with compliance frameworks and legislation. Evaluating any potential remote control choice.
Intelligent flash storage arrays
Tegile Intelligent Storage Arrays with IntelliFlash helps IT boost storage utilization and effciency while delivering unmatched storage savings and performance.
WIN a very cool portable ZX Spectrum
Win a one-off portable Spectrum built by legendary hardware hacker Ben Heck
High Performance for All
While HPC is not new, it has traditionally been seen as a specialist area – is it now geared up to meet more mainstream requirements?
Beginner's guide to SSL certificates
De-mystify the technology involved and give you the information you need to make the best decision when considering your online security options.