- \n
- STS-119 LIVE UPDATES<\/li>\n
- L2 STS-119 Section<\/li>\n
- L2 STS-125 Section<\/li>\n
- Click here to Join L2<\/li>\n<\/ul>\n
Engineers were already busy preparing for the arrival of Discovery, with Pad Validation work picking up, along with waves of LOX tankers arriving to support the launch \u2013 targeted for less than a month\u2019s time.<\/p>\n
\u201cCTS (Call To Stations) for S0009, Launch Pad Validation is scheduled for this morning,\u201d added processing information. \u201cEngine and aerosurface flight readiness tests, ball seal leak checks, and helium signature test are scheduled for tomorrow (Thursday).<\/p>\n
\u201cPad 39A: LOX replenishment was completed yesterday with 4 waves of tankers.\u201d<\/p>\n
Rocket launch schedules
<\/path>Rocket building kits <\/path>Space tourism guides <\/path>\n (adsbygoogle = window.adsbygoogle || []).push({});<\/p>\n
Also starting this week is the opening Flight Readiness Review (FRR) \u2013 one of several stages \u2013 to confirm the shuttle and her teams at the Kennedy Space Center (KSC) and Johnson Space Center (JSC) are ready to support the February 12 launch date.<\/p>\n
\u201cGreat start to the New Year \u2013 with Discovery is now mated to the stack \u2013 and rollout to Pad A,\u201d noted the latest MOD level 8th Floor News report on L2.<\/p>\n
\u201cThe FRR process is in full swing with the MOD FRR on 1\/16 and many of the other SSP Elements and Organizations conducting their internal FRRs in the next few weeks leading up to the SSP Level II FRR on 1\/21 and 1\/22, JSC Center Director Pre-FRR on 1\/30, and Agency Level I FRR on 2\/3.\u201d<\/p>\n
![\"\"](\"https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2009\/01\/a28.jpg\")
One of the main items that will be discussed at the FRRs is the issue found on Endeavour during the previous missions (STS-126) \u2013 relating to the Flow Control Valves (FCVs), which was previously reported by this site. Engineers will replace Discovery\u2019s three FCVs at the pad, with flight rationale being worked on by engineers at JSC.<\/p>\n\u201cGood progress is being made by the folks working the STS-126 MPS (Main Propulsion System) Flow Control Valve anomaly,\u201d added the 8th Floor report. \u201cThe valves from Atlantis\/OV104 and Endeavor\/OV105 (including the anomalous valve with cracked poppet) and three spare valves have been inspected.<\/p>\n
\u201cThe results indicate the failure was caused by high cycle fatigue. However, this poppet is not subjected to high number of cycles. Therefore, the team is trying to determine the source of the high cycle fatigue \u2013 potentially environment induced or induced during the manufacturing process.<\/p>\n
\u201cThe community continues to work this issue and are working toward having acceptable flight rationale for STS-119\/15A.\u201d<\/p>\n
It is expected that Discovery\/119 will receive the required flight rationale at the FRRs, due to the extensive checks that have taken place on the three FCVs that will be installed into Discovery at the Pad.<\/p>\n
The other challenge is to ensure another valves are deemed to be in pristine condition for installation into Endeavour \u2013 given she will be supporting Discovery as the LON (Launch On Need) orbiter.<\/p>\n
![\"\"](\"https:\/\/www.nasaspaceflight.com\/wp-content\/uploads\/2009\/01\/a35.jpg\")
\u201cInternal pneumatic leak seen on STS-126 has been isolated to check-valve #4 More testing will be performed. After valve is removed, it will undergo failure analysis,\u201d added JSC\u2019s Orbiter department on the latest Shuttle Stand-up\/Integration report on L2.<\/p>\n\u201cAll poppets on the spare valves have been scanned by electron microscope after dye penetrant was applied.<\/p>\n
\u201cResults show all three spares good, with no cracks. Equipment is back with vendor to be reassembled.<\/p>\n
\u201cThe January 28 need date will be met. These will be R&R items for OV-103 (Discovery) at the pad.<\/p>\n
\u201cThis Wednesday is OPO (Orbiter Project Office) level Pre-FRR for STS-119. During that meeting, the flight rationale for the FCV will be discussed.\u201d<\/p>\n
L2 members<\/em><\/em>: All documentation \u2013 from which the above article has quoted snippets \u2013 is available in full in the related L2 sections, now over 4000 gbs in size.<\/em><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"
Shuttle Discovery has completed her three mile journey from the Vehicle Assembly Building (VAB) to Pad 39A, as preparations for STS-119 start to ramp up for the February 12 launch target \u2013 which includes the building of flight rationale for the three replacement Flow Control Valves (FCVs) that will be installed into Discovery. Discovery departed […]<\/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":[9191,9123],"class_list":["post-41215","post","type-post","status-publish","format-standard","hentry","category-news","tag-fcv","tag-sts-119"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/41215"}],"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=41215"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/41215\/revisions"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=41215"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=41215"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=41215"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}