{"id":42085,"date":"2006-04-25T20:10:46","date_gmt":"2006-04-25T12:10:46","guid":{"rendered":"https:\/\/wp-productionenv-bjg9h2g2bgg5b8aa.southeastasia-01.azurewebsites.net\/news\/breeze-m-investigation-concludes\/"},"modified":"2006-04-25T20:10:46","modified_gmt":"2006-04-25T12:10:46","slug":"breeze-m-investigation-concludes","status":"publish","type":"post","link":"https:\/\/starpath.global\/news\/breeze-m-investigation-concludes\/","title":{"rendered":"Breeze-M investigation concludes"},"content":{"rendered":"

A Russian State commission has concluded that an anomaly in the Breeze-M upper stage main engine was at fault for the failed launch of the Arabsat 4A satellite in February. The most probable cause of the oxidizer supply interruption was a foreign particle that blocked a nozzle of the booster hydraulic pump. <\/p>\n

The amount of time it will take to undergo corrective action will ultimately postpone the May 17th launch from the Baikonur Cosmodrome of the Hot Bird 8 satellite.
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<\/font><\/em>\u2018The commission concluded that an anomaly in the oxidizer supply system caused the Breeze M upper stage main engine to shut down prematurely,\u2019 noted an International Launch Services (ILS) press release. <\/p>\n

\u2018Based on telemetry data, the most probable cause of the oxidizer supply interruption was a foreign particle that blocked a nozzle of the booster hydraulic pump, the commission stated.\u2019<\/font><\/p>\n

Flight operations should be able to resume after corrective actions have been implemented, the commission stated, with implementation of such steps is expected by the end of May.<\/p>\n

\"\"The commission noted the Proton M first stage concluded its role successfully, but at 5,536 seconds after lift-off, during the second burn of the Breeze M, an unplanned main engine shutdown occurred. <\/font><\/p>\n

\u2018In accordance with standard procedures, the flight control system produced an emergency command, and at 5,541 seconds after lift-off the spacecraft was separated from the upper stage, into an orbit of 51.5 degrees inclination, 14,679 km apogee altitude and 506 km perigee altitude,\u2019 added the commission.<\/font><\/p>\n

\u2018The State Commission reviewed all possible failure scenarios based on telemetry data received from the Breeze M upper stage. To verify possible scenarios, various units have been tested in test stands, including test firing of the main engine. <\/font><\/p>\n

\u2018The commission is developing corrective actions for additional inspection of the Breeze M and Breeze KM main engines, which are of the same type, to prevent recurrence of similar anomalies.\u2019
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Concurrently, the ILS Failure Review Oversight Board will commence a series of meetings in Moscow. The FROB will review the final report and corrective action plan in accord with U.S. and Russian government technology control regulations, with a goal of completing its work by the end of May. <\/font><\/p>\n

\"\"<\/font><\/em>This won\u2019t conclude in time to save the current slot open to the Hot Bird 8 launch \u2013 which was the next mission to use the Breeze-M upper stage during it\u2019s ascent.
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Hot Bird 8 \u2013 the largest satellite built by Eutelsat for its customer EADS ASTRIUM \u2013 could be pushed down the schedule to the end of this year, or move to a launch via Arianespace\u2019s Ariane 5 launcher, which recently launched one of the earlier range, the Hot Bird 7A. <\/font><\/p>\n

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Hot Bird 8 is important to its customer, given its mission to replace existing HOT BIRD capacity, joining HOT BIRD 7A, 13 degrees East. <\/p>\n

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A Russian State commission has concluded that an anomaly in the Breeze-M upper stage main engine was at fault for the failed launch of the Arabsat 4A satellite in February. The most probable cause of the oxidizer supply interruption was a foreign particle that blocked a nozzle of the booster hydraulic pump. The amount of […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[2],"tags":[],"class_list":["post-42085","post","type-post","status-publish","format-standard","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/42085"}],"collection":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/comments?post=42085"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/42085\/revisions"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=42085"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=42085"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=42085"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}