{"id":41755,"date":"2007-04-06T22:40:57","date_gmt":"2007-04-06T14:40:57","guid":{"rendered":"https:\/\/wp-productionenv-bjg9h2g2bgg5b8aa.southeastasia-01.azurewebsites.net\/news\/sts-117-heading-towards-june-launch-boosters-life-extended\/"},"modified":"2007-04-06T22:40:57","modified_gmt":"2007-04-06T14:40:57","slug":"sts-117-heading-towards-june-launch-boosters-life-extended","status":"publish","type":"post","link":"https:\/\/starpath.global\/news\/sts-117-heading-towards-june-launch-boosters-life-extended\/","title":{"rendered":"STS-117 heading towards June launch \u2013 Booster\u2019s life extended"},"content":{"rendered":"<p>NASA managers appear to have ruled out the possibility of launching shuttle Atlantis in the short May launch window, based on the latest ET-124 repair schedule.\n<\/p>\n<p>  At the same time, ATK managers satisfied NASA management that an extension to the lifetime of the of the two Solid Rocket Motors that will help launch Atlantis is viable, thus taking away the deadline of a July launch before the need to destack the SRBs.\n<\/p>\n<p><em><img loading=\"lazy\" decoding=\"async\" height=\"129\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=13910\" width=\"600\" align=\"left\" vspace=\"5\" border=\"0\/\"><\/em><\/p>\n<p><em>**The most comprehensive collection&nbsp;of STS-117 onwards&nbsp;related presentions and mission documentation are&nbsp;<\/em><em><font color=\"#0000ff\">available to download&nbsp;on L2<\/font><\/em><font color=\"#0000ff\"><em>&nbsp;<\/em><em>**<\/em><\/font><\/p>\n<p><em><font color=\"#0000ff\">**LIVE news updates on Atlantis&nbsp;STS-117&nbsp;VAB Flow**<\/font><\/em><\/p>\n<p><em><font color=\"#0000ff\">**LIVE news updates on&nbsp;Endeavour&nbsp;STS-118 (LON-318)&nbsp;Processing**<\/font><\/em><\/p>\n<p><em><font color=\"#0000ff\">**LIVE news updates on Discovery&nbsp;STS-122 (LON-322)&nbsp;Processing**<\/font><\/em><font face=\"Arial\"><\/font><font size=\"2\"><em><br \/><\/em><\/font><\/p>\n<p><em><font color=\"#e50000\"><\/font><font face=\"Arial\" color=\"#0000ff\" size=\"2\">Related documentation on L2<\/font><font face=\"Arial\" size=\"2\">: Major STS Flight Schedule Changes (New FAWGs) \u2013 March 27 \u2013 NASA White Paper on Manifest Changes \u2013 March 27 \u2013 Shuttle Flight Preparation Status Charts to STS-124. ET Repair Documentation \u2013 from start of March to April. ATK Presentation on RSRM Life \u2013 plus more.<\/font><\/em><\/p>\n<p><em><font face=\"Arial\" size=\"2\">**Previous articles related to&nbsp;the ET&nbsp;damage events: <\/font><\/em><font face=\"Arial\" color=\"#0000ff\" size=\"2\"><em>Article 1<\/em><\/font><font face=\"Arial\" color=\"#0000ff\" size=\"2\"><em> \u2013 <\/em><\/font><font face=\"Arial\" color=\"#0000ff\" size=\"2\"><em>Article 2<\/em><\/font><font face=\"Arial\" color=\"#0000ff\" size=\"2\"><em>&nbsp;\u2013 <\/em><\/font><font face=\"Arial\" color=\"#0000ff\" size=\"2\"><em>Article 3<\/em><\/font><font face=\"Arial\" color=\"#0000ff\" size=\"2\"><em>&nbsp;\u2013 <\/em><\/font><font face=\"Arial\" color=\"#0000ff\" size=\"2\"><em>Article 4<\/em><\/font><font face=\"Arial\" color=\"#0000ff\" size=\"2\"><em>&nbsp;\u2013 <\/em><\/font><font face=\"Arial\" color=\"#0000ff\" size=\"2\"><em>Article 5<\/em><\/font><font face=\"Arial\" color=\"#0000ff\" size=\"2\"><em>&nbsp;\u2013 <\/em><\/font><font face=\"Arial\" color=\"#0000ff\" size=\"2\"><em>Article 6<\/em><\/font><font face=\"Arial\" color=\"#0000ff\" size=\"2\"><em>&nbsp;\u2013 <\/em><\/font><font face=\"Arial\" color=\"#0000ff\" size=\"2\"><em>Article 7<\/em><\/font><font face=\"Arial\" color=\"#0000ff\" size=\"2\"><em>&nbsp;\u2013 <\/em><\/font><font face=\"Arial\" color=\"#0000ff\" size=\"2\"><em>Article 8<\/em><\/font><font face=\"Arial\" color=\"#0000ff\" size=\"2\"><em>&nbsp;\u2013 <\/em><\/font><font face=\"Arial\" color=\"#0000ff\" size=\"2\"><em>Article 9<\/em><\/font><em><font face=\"Arial\"><\/font><font size=\"2\"><\/font><font color=\"#0000ff\">&nbsp;\u2013 <font color=\"#0000ff\">Article 10<\/font><\/font><font color=\"#0000ff\"> \u2013 <\/font><font color=\"#0000ff\">Article 11<\/font>&nbsp;\u2013 <font color=\"#0000ff\">Article 12<\/font><font color=\"#0000ff\">&nbsp;\u2013 <font color=\"#0000ff\">Article 13<\/font>**<\/font>&nbsp;Click for <\/em><em><font face=\"Arial\" size=\"2\">more screenshots of the damage.<\/font><\/em><\/p>\n<p><font face=\"Arial\" size=\"2\">With ET-117 now on dock at the Kennedy Space Center (KSC), a decision to swap with ET-124 for Atlantis\u2019s launch&nbsp;now seems likely \u2013 though no hints on which way the decision will go have been noted \u2013 given there is little immediate benefit to be gained by repairing and launching with ET-124, as opposed to destacking and using ET-117. Both scenarios would lead to a June launch window for STS-117. <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">A decision \u2013 which will be forthcoming on April 10 \u2013 and will be announced to the media later in the day. <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">\u2018(Evaluations) discovered that the BX 265 spray on the nosecone, which was originally a parallel process during PDL repairs, should be a serial process,\u2019 noted NASA information. \u2018Now the overall schedule shows them completing this a couple of days later than what was presented on Tuesday. <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">\u2018Earliest launch date on recovery plan schedule is now May 26th.\u2019 <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">May 26 is not a viable launch date, as it falls outside the solar beta cut out, which restricts the May launch opportunity to a May 11-20 launch window. Thus, STS-117 now moves to June.<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><br \/>\n<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><img loading=\"lazy\" decoding=\"async\" height=\"130\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=13815\" width=\"200\" align=\"left\" vspace=\"5\" border=\"0\/\"><font face=\"Arial\"><\/font><font color=\"#0000ff\" size=\"2\">**Ride home through the fire and plasma of re-entry with Atlantis on STS-115 \u2013&nbsp;And&nbsp;now also with&nbsp;Discovery on STS-116&nbsp;\u2013 TWO Stunning high quality&nbsp;2hr, 355mb videos \u2013 from deorbit burn to post landing**<\/font><\/font> <\/p>\n<p><font face=\"Arial\" size=\"2\">There are some benefits to be gained by continuing with ET-124 for Atlantis\u2019 mission, with a new NET (No Earlier Than) launch date of June 8 being noted, along with saving disruption in having the tank either continuing repairs inside the VAB (Vehicle Assembly Building) \u2013 or being sent back to the Michoud Assembly Facility (MAF). <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">Should the decision be made to swap the tanks, the new NET launch date will be June 17. The only other issue of note is related to inspections being required&nbsp;on the Atlantis\u2019 SSMEs (Space Shuttle Main Engines) \u2013&nbsp;due to possible&nbsp;<!--StartFragment -->contamination in the propulsion system (presentations on L2).<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">Meanwhile, the constraint associated with the two Reusable Solid Rocket Motors (RSRMs) \u2018best before date\u2019 has been lifted, following an expansive presentation by their manufacturer, ATK. <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">Previously set to run out of their certified lifetime on July 3, ATK presented rationale on extending the lifespan from five years, to five and half years. This will apply for all future RSRM units. The decision relaxes the tight timeline on four sets of motors in total, namely RSRM-96, 97, 98 and 99, which are to be used on STS-117, 118, 120 and 122 respectively. <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">Although the presentation was completed this Thursday, ATK have been evaluating the age limits of their RSRMs for some time, with such evaluations dating back to 2005 and 2006. <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><br \/>\n<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">\u2018In the fall of 2005, RSRM initiated an assessment of the technical acceptability of and methodology for extending age life,\u2019 noted the ATK presentation. \u2018Five years is not an \u2018age cliff\u2019 for the materials used in RSRM \u2013 these materials (or chemically similar materials) are used in rocket systems certified for 20+ years and tested\/flown for &gt;30 years (Minuteman, D-5 Trident, etc.) <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">\u2018Technical consensus from the TIM: age life extension to 5.5 years acceptable with the confidence in the RSRM motor age life.\u2019 <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><br \/>\n<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">Presented for approval by the main NASA centers that deal with the boosters, ATK have all their data in place, should STS-117 fail to launch in the June launch window. <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">\u2018Conclusion from the aging TIM that age life extension to 5.5 years is acceptable \u2013 extends age life to 3 Jan 2008 for RSRM-96 (STS-117) Note: Controlling requirements now become 1-year stack life (7 Dec 2007) and 180-days on pad (10 Aug 2007). Note: 1-year submersion testing due 6 April expected to justify extension (waiver) of 180-days requirement, as needed.<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\">\u2018Acceptable system\u2019s level demonstrations and thorough post fire evaluations of recent RSRM (&gt;4 year old) and similar old motors. Up to 39 year old Minuteman motors successfully static tested. <\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><\/p>\n<p>\u2018Motor specific archive witness panel and propellant loaf sample tests complete for RSRM-96 \u2013 all results acceptable. Flight specific age life extension is justified for RSRM-96. Schedule of completion targeted for opening of window (June 8) but not required until a launch on July 4 or later.\u2019<\/p>\n<p><\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><em>Further articles will follow. Please refer to the live update pages on L2 (for NASA presentations,&nbsp;memos, emails and images) and on Atlantis\u2019 section (open to all)<\/em>.<\/font><\/p>\n<p><font face=\"Arial\" size=\"2\"><img loading=\"lazy\" decoding=\"async\" height=\"60\" alt=\"\" hspace=\"5\" src=\"http:\/\/forum.nasaspaceflight.com\/forums\/get-attachment.asp?action=view&amp;attachmentid=12993\" width=\"468\" align=\"left\" vspace=\"5\" border=\"0\/\"><\/font><\/p>\n<p><em><font face=\"Arial\" size=\"2\">**INFINITY: 10 minute&nbsp;STS MUSIC&nbsp;VIDEO**<\/font><\/em><font face=\"Arial\"><\/font><font size=\"2\"><em>&nbsp;\u2013 <br \/><\/em>(<em>Video section is FREE, but you need to sign up as a member of the forum to enter the video section of the site. We only use your e-mail to send you your password. It will not be used for spam etc.)<\/em><\/font><em><\/em><\/p>\n<p><em><br \/>\n<\/em><\/p>\n<p><em><font face=\"Arial\" size=\"2\"><em>**NASASpaceflight.com Job Opportunities**<\/em><\/font><\/em><em><font face=\"Arial\" size=\"2\">&nbsp;<\/font><\/em><\/p>\n<p><em><font face=\"Arial\" size=\"2\"><br \/>\n<\/font><\/em><\/p>\n<p><em><font face=\"Arial\" size=\"2\"><\/font><\/em><\/p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>NASA managers appear to have ruled out the possibility of launching shuttle Atlantis in the short May launch window, based on the latest ET-124 repair schedule. At the same time, ATK managers satisfied NASA management that an extension to the lifetime of the of the two Solid Rocket Motors that will help launch Atlantis is [&hellip;]<\/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-41755","post","type-post","status-publish","format-standard","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/41755"}],"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=41755"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/41755\/revisions"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=41755"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=41755"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=41755"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}