**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-122 Special: 29 Flight Readiness Review (FRR) Presentations, Baselines and Mission Overviews. **Click here for FRR overview articles: <\/font><\/em>Article 1<\/em><\/font><\/font> \u2013 <\/em><\/font>Article 2<\/em><\/font><\/font>**<\/em><\/font> Payload Presentations and vast amounts of live, uploaded images and presentations, movies (several) \u2013 already 2600 megabytes strong** <\/em><\/p>\n **COMPLETE Section \u2013 over 1300mbs of presentations \u2013 on ECO\/Feedthrough Connector issues and troubleshooting, graphical and data based \u2013 expansive.**<\/p>\n **LIVE updates on Atlantis STS-122 Troubleshooting Latest**<\/em><\/font><\/p>\n **LIVE updates on Discovery STS-124 Processing**<\/em><\/font><\/p>\n <\/u><\/em><\/p>\n<\/p>\n Space Technology (adsbygoogle = window.adsbygoogle || []).push({});<\/p>\n<\/p>\n **LIVE news updates on Endeavour STS-123 Processing**<\/font><\/em><\/p>\n STS-122 ECO related news content: *Scrub 1* \u2013 *MMT Debate* \u2013 *Scrub 2* \u2013 *Hale Memo* \u2013 *Forward Plan* \u2013 *Culprit Found* \u2013 *Tanking Test* \u2013 *Repair Options* \u2013 *MAF Plan* \u2013 *PRCB Debate* \u2013 *Plan Approved* \u2013 *Repair Schedule* \u2013 *Launch Date* \u2013 *New Issue* \u2013 *Hale Rallying Call* \u2013 *PRCB Launch Dates* \u2013 *New Connector Installed* \u2013 *Positive Test Results* \u2013 *Manifest Impacts* \u2013 *Optimism with forward plan* \u2013 *Flight Rationale* \u2013 *Repairs Finalizing* \u2013 *Root Cause Confirmed*<\/p>\n Latest:<\/u><\/em><\/p>\n \u2018During Stbd PLB door opening, observers noted a kink\/bend in the stbd aft radiator retract hose. Door motion was halted,\u2019 noted information on L2.<\/p>\n \u2018Near-Term Plan: perform borescope inspections of hose, retract box assy, Close FCL2 rad isol vlv to mitigate any potential freon leakage, then take photos. Operation to take PLB door to full open is on hold. <\/p>\n \u2018Constraint to closing of PLBD in vertical.\u2019<\/p>\n New article will follow soon.<\/p>\n Pre Inspections (Tuesday morning):<\/u><\/em><\/p>\n Engineers will carry out boroscope inspections \u2013 due to the possibility of finding a cracked hose, which may cause a Freon leak on orbit \u2013 to check on Atlantis\u2019 hoses, though it is unlikely they will find a problem, due to the issue found on Discovery being the first of its kind.<\/p>\n The need to check Atlantis hoses relates to a number of concerns such an issue can hold for the orbiter once in orbit, though mitigation processes can be utilized in such an eventuality.<\/p>\n <\/b><\/p>\n \u2018<\/p>\n Flex hose distortion could result in: Freon coolant loop flow rate restriction. FCL leakage. Omega bend increases risk of leakage due to reverse bending,\u2019 noted Flight Readiness Review (FRR) documentation. \u2018Distorted flex hose could protrude into payload envelope. Distorted hose may have put unacceptable loads into door drive mechanism.\u2019<\/p>\n Adding to confidence that the issue is a one-off with Discovery, and unlikely to be found on Atlantis, are inspections relating to Discovery\u2019s STS-116 and STS-120 missions, which showed a progression of changes to the shape of the hose, possibly as a precursor to the current observations.<\/p>\n The forward plan is focusing on root cause, mainly via additional testing by Boeing, while flight rationale is built for all potential scenarios relating to Atlantis, including on orbit.<\/p>\n \u2018Discovery: Testing at Boeing, Huntington Beach. Flex hose X-ray evaluation and internal wall borescope inspection to baseline as-received condition. Map performance parameters for two flex hoses installed in the removed OV-103 aft starboard radiator retract container assembly using a test fixture that simulates the payload bay doors. Testing may yield data to determine root cause.\u2019<\/p>\n \u2018Atlantis: Operational work-around\/risk mitigation technique to be utilized for door closure: Ascent and Post Insertion payload bay door opening operations will occur per nominal procedures. Deorbit Prep (D\/O Prep) payload bay door operations to be modified:<\/p>\n \u2018Radiators will be pre-emptively isolated prior to payload bay door closing: Crew will perform visual inspections after closure. Ground (MCC) will verify no leaks. If no leaks, crew will return radiators to the nominal bypass config (unisolate). If a bend is observed in a radiator hose, that radiator will be isolated prior to the deorbit burn and remain isolated through entry.<\/p>\n \u2018The coldsoak from the radiator may be used during post landing. For wave-off scenarios, the affected radiator will be isolated prior to door opening. Post opening, assuming no leaks, the radiator will be returned to a nominal on-orbit config. <\/p>\n \u2018Accept risk of freeze up and associated blockage in radiator while in isolate config. Possibility of freezing due to water within freon freezing and blocking radiator outlet filters. Minimize time in isolate until thermal analysis assess potential for freezing.\u2019<\/p>\n Even if such a problem was observed on orbit, there wouldn\u2019t be a safety issue, due to alternative paths of cooling the orbiter when the payload bay doors are closed for deorbit and re-entry.<\/p>\n \u2018Small to moderate radiator retract flex hose leaks mitigated by auto radiator isolation capability,\u2019 added the FRR presentation. \u2018Orbiter cooling provided primarily by the FES during deorbit\/entry. Loss of cooling capacity for cold-soaked radiator can be compensated by early ammonia boiler activation.<\/p>\n \u2018Acceptable for STS-122 Flight: Prelaunch verification limits the distortion risk to the end of mission payload bay door closure. Radiator isolation prior to payload bay door closure mitigates loss of Freon loop if hose distorts and leaks.<\/p>\n \u2018Precludes complete loss of FCL (in case of large leaks) and is least impact to crew activity. Radiators nominally in bypass prior to door closure. If a large leak develops, no time-critical actions required to preserve loop. ATCS can support safe return with radiators isolated. <\/p>\n \u2018Crew can visually monitor radiator retract flex hose condition for on-orbit door closure. Return to nominal configuration after verification of no distortion. Power and water management procedures in-place to manage vehicle operations for weather wave-off.\u2019<\/p>\n Meanwhile, STS-122 is continuing to prepare for S0007 Launch Countdown, with the pad undergoing several levels of returning to a launch posture. Yesterday the flame deflectors were returned to their launch configurations, while the water bags under the Solid Rocket Boosters will be installed on Tuesday. <\/font><\/font>Click here for MaxQ\u2019s Stunning Apollo I\/Challenger\/Columbia Tribute Video \u2018New Days Will Rise\u2019.<\/em><\/font><\/p>\n **STARLIGHT: NEW STS-117 MISSION REVIEW MUSIC VIDEO**<\/font><\/em> \u2013 STS-118 and STS-120 Mission review video also available.<\/font><\/em><\/font> <\/em><\/font><\/p>\n **ROCK YOU LIKE A HURRICANE: STS-117 MISSION REVIEW MUSIC VIDEO \u2013 AS SEEN BY THE STS-117 CREW!!**<\/font> -. Atlantis had her payload bay doors opened Tuesday, though the operation was halted due to a flexed starboard aft radiator retract flex hose. Engineers were checking the hoses after the same problem was noted on Discovery \u2013 the first time such an issue had arose. Meetings are taking place on a forward plan, as 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-41494","post","type-post","status-publish","format-standard","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/41494"}],"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=41494"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/41494\/revisions"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=41494"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=41494"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=41494"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}<\/em><\/font>STS-122 L2 Special NOW LIVE. <\/em><\/font>**Click here for sample of L2 menu and content**<\/font><\/em><\/p>\n
\u2018Evaluation of photos from STS-116 and STS-120 pad flow show change in flex hose geometry in the door open position \u2013 may be a precursor to distortion,\u2019 added the documentation, which also noted no issues have been found on Endeavour. <\/p>\n
**Ride home through the fire, sparks and plasma of re-entry with Atlantis, Discovery and Endeavour. FIVE Stunning high quality 2hr, 355-400mb Camcorder and HUD videos \u2013 from payload bay closure \u2013 through re-entry with an astronaut held camcorder video \u2013 to post landing \u2013 several more videos showing landing from 90,000 ft also available and HUD videos from STA landings. Includes HALO II Re-entry video, and re-entry videos from Gemini and Apollo (converted from 8mm)**<\/em><\/font><\/p>\n
<\/em>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
(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><\/font><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"