scene composition: litho, frame 22
May 13, 2013
Categories: ISS

American astronauts Thomas Marschburn and Chris Cassidy went to the open space to determine the leak point of ammonia in the cooling system and probably to replace the pump that is the source of ammonia leak.

The astronauts detached PFCS (Power Flow Control Subassembly) pump block that is supposed to be the source of leak and examined the assembly in search for the leak point. Earlier in the process of detachments the astronauts found some “ammonia flakes” but this fact didn’t allow to judge about the leak point. “The place we removed PFCS block from looks very clean” – Cassidy says.

Cassidy and Marschburn transferred the block removed to the storing place and installed the spare pump block of ISS cooling system.

The spare pump block operates properly, the astronauts haven’t recoded any ammonia leak since the new block was installed.

comments

More from this category:
1058955490
April 17, 2015

Russian orbital station is to be developed by 2023, – Russian President Vladimir Putin said on Thursday during live call-in. “We are going to develop…

full story
5TGMwvPufIk
September 1, 2014

Foton-M №4 space device successfully landed in Orenburg region in accordance with the estimated data on September 1, at 13.18, Moscow time. Space device   was designed…

full story
2920403783
May 26, 2014

Today, on May 26, space rocket going to orbit Soyuz TMA-13M spacecraft with ISS-40/41 mission crew onboard on May 28 was installed on #1 launching pad…

full story
750205670
May 7, 2014

Soyuz-2.1a booster with military space device was successfully launched from Plesetsk spaceport, representative of  Russian Ministry of Defenсe press-office management on Aerospace Defenсe troops Colonel…

full story
Zenit-launch
December 4, 2013

Kazakhstan hopes to start operating “Zenit” rocket and space complex facilities of Baikonur spaceport by the end of 2014, – “Kazcosmos” national company Deputy President…

full story
Путин, Коспар
April 14, 2014

Russian President Vladimir Putin expressed the hope for future cooperation with International Committee on Space Research (COSPAR). On Friday, April 11 Vladimir Putin had a…

full story
МБР
June 7, 2013

Pilot model of new intercontinental ballistic missile was successfully launched from Kapustin Yar launch site The test launch of new intercontinental ballistic missile was successfully…

full story
1061642834
June 30, 2015

Stock of food and water stored onboard the ISS will enable the crew to wait for the next Progress M-28M cargo vehicle arriving on July…

full story