![\"\"](\"http:\/\/www.countdowncreations.com\/images\/shuttle_25th_t.jpg\")
<\/font>Space Shuttle 25th Anniversary T-Shirt. Use discount code \u2018nasaspaceflight\u2019 when ordering from Countdown Creations & receive 5% off!<\/em><\/font><\/p>\n<\/font>Documents acquired by NASASpaceflight.com point to ET-123 now hitting a critical production path, with technicians and engineers all being moved to ET-118 work, to ensure that tank makes it to KSC in time to support STS-121 with STS-300.<\/font> <\/font><\/font><\/p>\n Added to the need for a re-work on areas of ET-123, its projected shipping date of August 7 is now under review. This situation was highlighted during last Thursday\u2019s PRCB (Program Requirements Control Board) meeting.<\/font> <\/font><\/font><\/p>\n Just last week, Wanda Sigur, ET Project vice president at Lockheed Martin, noted that all available workers are being allocated to ET-118. <\/p>\n STS-115, currently on the schedule as NET (No Earlier Than) August 28, sees Atlantis re-starting ISS (International Space Station) assembly flights, carrying the P3\/P4 truss uphill to the outpost.<\/font> <\/font><\/font><\/p>\n The supporting LON (Launch On Need) date in support of STS-115 is November 11, currently tagged STS-301, although that will revert to the STS-300 designation once STS-121 (Discovery) stands down the need for a supporting rescue mission this July.<\/font> <\/font><\/font><\/p>\n Shuttle managers, working alongside the Michoud Assembly Facility (MAF)\/Lockheed managers will have to come up with a recovery plan, which will likely come into effect once ET-118 is shipping to KSC.<\/font> <\/font><\/font><\/p>\n However, MAF information notes the following: \u2018Cell A processing, impacting critical path, due to resource allocation required to support ETs 119 and 118 and rework associated with ET-123 Intertank stringer, TPS injections and thrust panel pocket TPS spray.\u2019 It is not clear how much time will be impacted on ET-123\u2019s schedule with this re-work.<\/font> <\/font><\/font><\/p>\n Following ET-119\u2019s R&R work, it has come to light that the current stock of ECO sensors being used in all the current ETs are from the \u2018same build time frame as ET-119 and ET-120 sensors,\u2019 and have a \u2018history of measurement anomalies associated with \u00e2\u20ac\u02dcloose swage\u00e2\u20ac\u2122 (possibly related to tooling fatigue) from that build time frame.\u2019<\/p>\n <\/font><\/p>\n <\/p>\n <\/font><\/p>\n The PRCB heard that a recommendation to replace the ECO sensors in ET-118 is the best option open to engineers, with the remaining question on whether to carry out the work at MAF or KSC. <\/p>\n \u2018ET-118 ECO sensors removal\/replacement recommended due to eliminate suspect \u00e2\u20ac\u02dcloose swage\u00e2\u20ac\u2122 condition,\u2019 noted the information acquired. \u2018Option 1: R&R sensors at MAF. Option 2: R&R sensors at KSC.\u2019 <\/font><\/p>\n Option 2 appears to be the preferred process of changing out ET-118\u2019s sensors, as \u2018ECO sensor R&R at MAF would drive completion date.\u2019 <\/font><\/p>\n While ET-118 is still expected to be shipped with plenty of contingency time to support STS-121 through the STS-300 requirement, the continued lack of work on ET-123 is likely to add to the schedule slip of that tank, note sources \u2013 and with it the possibility of STS-115 launching close to its current NET launch target.<\/p>\n <\/u><\/font><\/p><\/p>\n","protected":false},"excerpt":{"rendered":" The projected second Shuttle mission of 2006, STS-115, may be pushed down the schedule, due to a slip in the production process of ET-123. While ET-118 \u2013 soon to be shipped to the Kennedy Space Center (KSC) \u2013 will actually fly on STS-115 with Atlantis, ET-123 is required at KSC in time to support the […]<\/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-42074","post","type-post","status-publish","format-standard","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/42074"}],"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=42074"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/42074\/revisions"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=42074"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=42074"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=42074"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}This requirement is described as \u2018jeopardizing ET-123 production\u2019 on the acquired document.<\/font> <\/font><\/font><\/p>\n
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<\/em><\/font><\/font>Live updates and information resulting from the PRCB are available on L2. Full PRCB Documentation relating to this article will be available on L2 from the weekend.
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Also adding to MAF\u2019s workload is the continuing issue of the ECO (Engine Cut Off) sensors \u2013 this time with ET-118.<\/font> <\/font><\/font><\/p>\n![\"\"](\"http:\/\/content.nasaspaceflight.com\/library\/1016\/AdBanners\/storelogo3.jpg\")
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<\/font>LIVE UPDATE PAGES<\/font><\/em><\/p>\n