{"id":466806,"date":"2023-07-25T14:09:22","date_gmt":"2023-07-25T18:09:22","guid":{"rendered":"https:\/\/www.nasa.gov\/?p=466806"},"modified":"2023-07-26T14:30:45","modified_gmt":"2023-07-26T18:30:45","slug":"spacewalkers-complete-installation-of-ammonia-pump-module","status":"publish","type":"post","link":"https:\/\/www.nasa.gov\/missions\/station\/spacewalkers-complete-installation-of-ammonia-pump-module\/","title":{"rendered":"Spacewalkers Complete Installation of Ammonia Pump Module"},"content":{"rendered":"<div id=\"\" class=\"hds-media hds-module wp-block-image\"><div class=\"margin-left-auto margin-right-auto nasa-block-align-inline\"><div class=\"hds-media-wrapper margin-left-auto margin-right-auto\"><figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-cover \"><a href=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/07\/pic-122313c.jpg\"><img fetchpriority=\"high\" decoding=\"async\" width=\"320\" height=\"240\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/07\/pic-122313c.jpg?w=320\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"Astronaut Mike Hopkins prepares to attach himself to a foot restraint on the Canadarm2 outside the International Space Station.\" style=\"transform: scale(1); transform-origin: 50% 50%; object-position: 50% 50%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/07\/pic-122313c.jpg 320w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/07\/pic-122313c.jpg?resize=300,225 300w\" sizes=\"(max-width: 320px) 100vw, 320px\" loading=\"eager\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\"><div class=\"hds-caption-text p-sm margin-0\">Astronaut Mike Hopkins prepares to attach himself to a foot restraint on the Canadarm2 outside the International Space Station.<\/div><div class=\"hds-credits\">NASA TV<\/div><\/figcaption><\/div><\/div><\/div>\n\n\n<p>Spacewalkers Rick Mastracchio and Mike Hopkins completed a second spacewalk to install a spare ammonia pump module. The U.S. Quest airlock began repressurization at 2:23 p.m. EDT Tuesday signaling the official end of their spacewalk.<\/p>\n\n\n\n<p>Tuesday\u2019s main tasks included the removal and installation of a spare pump module. The first task was to remove the spare pump module from the space station\u2019s External Stowage Platform-3. After that was completed, the module was bolted to the S1 truss and connected to Loop A of the station\u2019s external Active Thermal Control System.<\/p>\n\n\n\n<p>Hopkins attached himself to the Canadarm2 and took a ride to the worksite. Mastracchio tethered himself to the station and translated to the S1 truss to assist his partner. Japanese astronaut Koichi Wakata operated the Canadarm2 from inside the Destiny laboratory.<\/p>\n\n\n<div id=\"\" class=\"hds-media hds-module wp-block-image\"><div class=\"margin-left-auto margin-right-auto nasa-block-align-inline\"><div class=\"hds-media-wrapper margin-left-auto margin-right-auto\"><figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-cover \"><a href=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/07\/pic-122313b.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"320\" height=\"240\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/07\/pic-122313b.jpg?w=320\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"Astronaut Mike Hopkins rides the Canadarm2 carrying the 780-pound ammonia pump module as the International Space Station flies over South America.\" style=\"transform: scale(1); transform-origin: 47% 99%; object-position: 47% 99%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/07\/pic-122313b.jpg 320w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/07\/pic-122313b.jpg?resize=300,225 300w\" sizes=\"(max-width: 320px) 100vw, 320px\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\"><div class=\"hds-caption-text p-sm margin-0\">Astronaut Mike Hopkins rides the Canadarm2 carrying the 780-pound ammonia pump module as the International Space Station flies over South America.<\/div><div class=\"hds-credits\">NASA TV<\/div><\/figcaption><\/div><\/div><\/div>\n\n\n<p>While doing the connection work, the duo demated ammonia fluid lines from a jumper box that enabled ammonia flow during the repair spacewalks. After experiencing some difficulty disconnecting a fluid line the spacewalkers reported seeing ammonia flakes escaping a valve. As a precaution, mission controllers asked the spacewalkers to inspect their spacesuits for possible ammonia contamination. Once they were back in the Quest airlock the duo conducted more ammonia decontamination procedures on their spacesuits. All four fluid lines were successfully reconnected to the newly installed pump module restoring ammonia flow.<\/p>\n\n\n\n<p>Afterward, Hopkins and Mastracchio completed electrical connections to the pump module. Power was successfully restored to the ammonia pump module. However, flight controllers will perform more tests before restarting the pump and returning it to full functionality.<\/p>\n\n\n\n<p>The duo was originally scheduled to finish the installation work on Monday before mission controllers detected a spacesuit configuration issue at the end of Saturday\u2019s spacewalk, in which the spacewalkers removed a faulty pump that experienced a problem with its internal flow control valve Dec. 11.<\/p>\n\n\n<div id=\"\" class=\"hds-media hds-module wp-block-image\"><div class=\"margin-left-auto margin-right-auto nasa-block-align-inline\"><div class=\"hds-media-wrapper margin-left-auto margin-right-auto\"><figure class=\"hds-media-inner hds-cover-wrapper hds-media-ratio-cover \"><a href=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/07\/pic-122313a.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"320\" height=\"240\" src=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/07\/pic-122313a.jpg?w=320\" class=\"attachment-2048x2048 size-2048x2048\" alt=\"Rick Mastracchio (left) and Mike Hopkins (right) are assisted by the rest of their Expedition 38 crew mates after the completion of their Dec. 24 spacewalk.\" style=\"transform: scale(1); transform-origin: 44% 21%; object-position: 44% 21%; object-fit: cover;\" block_context=\"nasa-block\" srcset=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/07\/pic-122313a.jpg 320w, https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/07\/pic-122313a.jpg?resize=300,225 300w\" sizes=\"(max-width: 320px) 100vw, 320px\" \/><\/a><\/figure><figcaption class=\"hds-caption padding-y-2\"><div class=\"hds-caption-text p-sm margin-0\">Rick Mastracchio (left) and Mike Hopkins (right) are assisted by the rest of their Expedition 38 crew mates after the completion of their Dec. 24 spacewalk.<\/div><div class=\"hds-credits\">NASA TV<\/div><\/figcaption><\/div><\/div><\/div>\n\n\n<p>The suspect pump was removed from the starboard truss and parked in a temporary location on the station\u2019s Mobile Base System rail car where it can stay until at least next June. Managers decided an extra day of preparation was necessary to get a backup spacesuit ready for Mastracchio.<\/p>\n\n\n\n<p><a href=\"https:\/\/www.nasa.gov\/news-release\/space-station-crew-removes-ammonia-pump-next-spacewalk-set-for-tuesday\/\">Read more about the spacesuit configuration issue<\/a><br><a href=\"https:\/\/www.nasa.gov\/general\/space-station-crew-removes-ammonia-pump-next-spacewalk-set-for-tuesday\">Read more about Saturday\u2019s spacewalk<\/a><\/p>\n\n\n\n<p>The Christmas Eve spacewalk lasted seven hours and 30 minutes. This was the 176th spacewalk in support of space station assembly and maintenance. Mastracchio holds 51 hours and 28 minutes spacewalking time over eight spacewalks. Hopkins holds 12 hours and 58 minutes over two spacewalks.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Spacewalkers Rick Mastracchio and Mike Hopkins completed a second spacewalk to install a spare ammonia pump module. The U.S. Quest airlock began repressurization at 2:23 p.m. EDT Tuesday signaling the official end of their spacewalk. Tuesday\u2019s main tasks included the removal and installation of a spare pump module. The first task was to remove the […]<\/p>\n","protected":false},"author":133,"featured_media":467052,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"nasa_hds_core_meta_l10n":"en-US","nasa_hds_core_meta_article_editor":"","nasa_hds_core_meta_article_contacts":[],"nasa_hds_core_meta_article_topic":"","nasa_hds_core_meta_linked_locations":[],"nasa_hds_core_meta_article_related_articles":[],"hds_migrate_meta_pr_release_id":"","hds_migrate_meta_pr_release_type":"","nasa_hds_core_meta_location_x":"","nasa_hds_core_meta_location_y":"","nasa_hds_core_meta_gallery_images":[],"footnotes":""},"categories":[3151,2735],"news-tags":[],"internal-terms":[],"coauthors":[10248],"parsely":{"version":"1.1.0","meta":{"@context":"https:\/\/schema.org","@type":"NewsArticle","headline":"Spacewalkers Complete Installation of Ammonia Pump Module","url":"https:\/\/www.nasa.gov\/missions\/station\/spacewalkers-complete-installation-of-ammonia-pump-module\/","mainEntityOfPage":{"@type":"WebPage","@id":"https:\/\/www.nasa.gov\/missions\/station\/spacewalkers-complete-installation-of-ammonia-pump-module\/"},"thumbnailUrl":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/07\/pic-122313c.jpg?w=150&h=150&crop=1","image":{"@type":"ImageObject","url":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/07\/pic-122313c.jpg"},"articleSection":"Missions","author":[{"@type":"Person","name":"Mark A. Garcia"}],"creator":["Mark A. Garcia"],"publisher":{"@type":"Organization","name":"NASA","logo":"https:\/\/www.nasa.gov\/wp-content\/themes\/nasa\/assets\/images\/nasa-logo.svg"},"keywords":["Missions","International Space Station (ISS)","Expedition 38"],"dateCreated":"2023-07-25T18:09:22Z","datePublished":"2023-07-25T18:09:22Z","dateModified":"2023-07-26T18:30:45Z"},"rendered":"<meta name=\"parsely-title\" content=\"Spacewalkers Complete Installation of Ammonia Pump Module\" \/>\n<meta name=\"parsely-link\" content=\"https:\/\/www.nasa.gov\/missions\/station\/spacewalkers-complete-installation-of-ammonia-pump-module\/\" \/>\n<meta name=\"parsely-type\" content=\"post\" \/>\n<meta name=\"parsely-image-url\" content=\"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/07\/pic-122313c.jpg?w=150&h=150&crop=1\" \/>\n<meta name=\"parsely-pub-date\" content=\"2023-07-25T18:09:22Z\" \/>\n<meta name=\"parsely-section\" content=\"Missions\" \/>\n<meta name=\"parsely-tags\" content=\"Missions,International Space Station (ISS),Expedition 38\" \/>\n<meta name=\"parsely-author\" content=\"Mark A. Garcia\" \/>","tracker_url":"https:\/\/cdn.parsely.com\/keys\/nasa.gov\/p.js"},"read_time":3,"time_ago":"11 months","featured_image":{"id":467052,"file":"https:\/\/www.nasa.gov\/wp-content\/uploads\/2023\/07\/pic-122313c.jpg","title":"Astronaut Mike Hopkins","alt":"Astronaut Mike Hopkins prepares to attach himself to a foot restraint on the Canadarm2 outside the International Space Station.","caption":"Astronaut Mike Hopkins prepares to attach himself to a foot restraint on the Canadarm2 outside the International Space Station."},"_links":{"self":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts\/466806"}],"collection":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/users\/133"}],"replies":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/comments?post=466806"}],"version-history":[{"count":6,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts\/466806\/revisions"}],"predecessor-version":[{"id":468964,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/posts\/466806\/revisions\/468964"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media\/467052"}],"wp:attachment":[{"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/media?parent=466806"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/categories?post=466806"},{"taxonomy":"news-tags","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/news-tags?post=466806"},{"taxonomy":"internal-terms","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/internal-terms?post=466806"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.nasa.gov\/wp-json\/wp\/v2\/coauthors?post=466806"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}