**The most comprehensive collection of Shuttle, Ares, Orion and ISS related presentations and mission documentation, plus expansive daily processing documentation and updates are <\/em>available to download on L2<\/em><\/font> **<\/em><\/font><\/p>\n **<\/font>STS-124 Sub Section Build-Up \u2013 special section Now Live. Now includes over 100mb of Flight Plans, S0007 Documents. Mission Overview CGI Videos. Plus 25 Flight Readiness Review (FRR) Presentations, and extensive, live, processing flashes, updates and presentations.<\/em><\/font><\/p>\n **STS-125\/LON-400 Sub Section Special already over 1500mb in size \u2013 special section Now Live, with over 40 superb mission presentations.<\/p>\n **LIVE updates on Atlantis STS-125 Processing Flow**<\/em><\/font><\/p>\n **LIVE updates on Discovery STS-124 Processing (PAD FLOW)**<\/em><\/font> NASA mission patches (adsbygoogle = window.adsbygoogle || []).push({});<\/p>\n ELSA Investigation:<\/em><\/u> <\/p>\n The ELSA unit fell a short distance to a location behind Avionics Bay 6 during mating operations inside the Vehicle Assembly Building (VAB). This occurred when Discovery was rotated from the horizontal to a vertical position ahead of mating with the External Tank. <\/p>\n A presentation \u2013 available on L2 \u2013 was shown to the PRCB members on Tuesday to show the unit \u2013 which should have been removed before Discovery left OPF-3 \u2013 failed to cause any damage to critical items during it fall. <\/p>\n Interestingly, the unit was spotted by coincidence during aft closeouts at the pad, when an eagle-eyed engineer noticed a strap that belonged to the ELSA protruding from behind the Avionics Bay. The technician was initially searching for a lost screw. <\/p>\n \u2018Emergency Life Support Apparatus (ELSA) unit detected during inspection associated with a Lost and Found Work Authorizing Document (WAD) issued for a missing screw,\u2019 noted the presentation. <\/p>\n \u2018Technician vacuuming behind avionics bay 6 encountered the strap of an ELSA unit. Technician notified his Lead and the appropriate documentation was generated to record the finding.\u2019 <\/p>\n Initially it was thought that the unit had caused tears that were observed in Thermal Control System (TCS) blankets \u2013 silver and goal mylar material that provides passive thermal control in various areas of the vehicle \u2013 in the aft when the ELSA unit was removed. However, this continues to be classed as unrelated. <\/p>\n \u2018No fluid lines, wire bundles, or ducts located in area where ELSA unit was located. No damage to structure found. Borescope inspections found only minor TCS blanket damage \u2013 not attributed to ELSA unit.<\/p>\n \u2018With no access to the bottom side of Avionics Bay 6, two small tears in the TCS blanket cover will be accepted as-is for one flight. All signatures have been obtained.\u2019<\/p>\n The lack of damage is related to the original location of the unit and where it was found, a position that stopped it from falling into the plumbing of the MPS (Main Propulsion System) and related hardware for the three Space Shuttle Main Engines (SSMEs). <\/p>\n \u2018ELSA unit was found positioned upright between structural stringers under Av Bay 6. Movement restricted to around six inches within the cavity,\u2019 added the presentation, which was accompanied by an array of images taken from inside Discovery\u2019s aft. <\/p>\n Though the presentation makes no assumptions on what may have happened had the unit of fallen past Avionics Bay 6 during mating operations \u2013 or dislodged during ascent \u2013 it is important to note that the aft hardware is built to withstand some abuse. <\/p>\n This was exemplified in October, 1990, when a nine foot long support beam audibly fell inside Atlantis\u2019s aft compartment during her mating operations in the VAB. That incident only caused damage to a small portion of a manifold relief line and minor abrasions to the surface coating of a strut and scuff marks on freon lines. <\/p>\n Regardless, the United Space Alliance (USA) are immediately taking action to ensure such an incident does not take place in future processing flows, with an accident investigation board tasked with ensuring the prevention of an occurrence. <\/p>\n \u2018Standing Accident Investigation Board (SAIB) Team Activated May 21, 2008. Board Objective: Gather facts, determine causes, and make recommendations to prevent future occurrences,\u2019 added the presentation.<\/p>\n \u2018Actions to date: Reviewed scene for investigation data. Performed documentation review: Logs. OPF ELSA Installation and Removal processes. Review of witness statements.<\/p>\n \u2018Interviews of relevant personnel involved in deployment, installation, and removal of ELSA units for OPF-3. Release of 48-hour quick-look. Directed an inventory of all ELSA units deployed for OV-103. Board Deliverables: Root Cause Analysis. Process Improvement\/Corrective Action. <\/p>\n \u2018At conclusion of the SAIB investigation, a presentation of findings\/recommendations will be made to the daily PRCB: Approximately 2-3 weeks.\u2019<\/p>\n STS-124 Pad Flow Update:<\/u><\/i><\/b> <\/p>\n Discovery\u2019s flow towards launch continues to be extremely smooth, and remains as the lowest amount of IPRs (Interim Problem Reports) recorded during a processing of an orbiter. <\/p>\n Whilst most of her engineers enjoyed up to four days off over the long Memorial Day weekend, Discovery remained issue free as she sat patiently on the pad. <\/p>\n \u2018Preparations for Launch Countdown continue. S0007.200 Call to Stations is planned for 14:30 EDT Wednesday,\u2019 noted the latest processing information on L2. \u2018On Friday, the crew escape pole was lifted into position. The Front End Processors (FEP) were base lined Friday morning.<\/p>\n \u2018(Fuel Systems) and MPS pressurization for flight (S0071) picked up Tuesday morning with Call to Stations at 00:01 EDT. Pad cleared of personnel at 01:50 EDT for Stage I pressurization. OMS\/RCS helium regulator lock-up complete. Drag Chute Door checkout complete.\u2019<\/p>\n One issue was noted, namely with the Forward Reaction Control System pressurization, though this is not deemed as a constraint to enter the launch countdown. <\/p>\n \u2018IPR: During FRCS regulator lockup, oxidizer \u2018B\u2019 leg locked up at 268.9 psi should be no more than 268 psi,\u2019 added the processing report. \u2018Engineering will seek a waiver.\u2019<\/p>\n L2 members<\/em><\/font>: All documentation \u2013 from which the above article has quoted snippets \u2013 is available in full in the related L2 sections, updated live.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":" Shuttle managers met on Tuesday to finalize clearance for Discovery to enter the launch countdown (S0007) on Wednesday, via a Program Requirements Control Board (PRCB) meeting. Items that were discussed included an update on how an Emergency Life Support Apparatus (ELSA) unit was accidentally left inside Discovery\u2019s aft \u2013 though no damage was caused. **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-41399","post","type-post","status-publish","format-standard","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/41399"}],"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=41399"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/41399\/revisions"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=41399"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=41399"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=41399"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}<\/em><\/font>**Click here for sample of L2 menu and content**<\/font><\/em><\/font><\/em><\/font><\/p>\n
**LIVE updates: Endeavour Dual LON and STS-126 Processing**<\/font><\/em><\/font><\/p>\n
<\/p>\nELSA units \u2013 which are emergency air supply apparatuses used by engineers when working in confined spaces inside the orbiters \u2013 are installed in the aft of the vehicles during OPF (Orbiter Processing Facility) flows. <\/p>\n
\u2018Thorough search of the aft compartment was conducted. Close out inspections were completed. Aft confidence check were completed successfully. All ELSA units deployed to OV-103\/104\/105 (OPF, VAB, Pad) have been physically verified. Engineering is confident no damage was caused by the ELSA unit.<\/p>\n
\u2018Prevented ELSA unit from traveling aft to engines, MPS lines, etc. during transition from horizontal to vertical \u2013 slow transition prevents sudden impacts. Monitoring personnel did not report any noise.\u2019<\/p>\n
Now on L2: A stunning 50 minute (1.9gb) high quality camcorder video of a special All Access tour of the VAB, Pad and OPF-3. Get up close with two orbiters, next to the engineers, ride the VAB elevator to the top of the building, walk around the pad and enter OPF-3 to within touching distance of Atlantis. FREE TRAILER NOW AVAILABLE \u2013 CLICK IMAGE<\/font>.<\/font><\/em><\/p>\n