**The most comprehensive collection of Shuttle, Ares, Orion and ISS related presentations and mission documentation, plus expansive daily processing documentation and updates are available to download on L2<\/em><\/font> **<\/em><\/font><\/font><\/em><\/em><\/p>\n Extensive STS-120 Special Section on L2 now live, including Flight Plans, Handbooks, Manuals, documentation and presentations. STS-122 to STS-127 documentation already available.<\/p>\n STS-120 L2 Special includes 19 MOD Flight Readiness Review Presentations. Vast information on the strut issue, including large selection of strut repair images from STS-98 and presentations on STS-120 repair effort.<\/p>\n **LIVE news updates on Discovery STS-120 Processing**<\/font><\/em><\/p>\n **LIVE news updates on Endeavour STS-118 Post Flight and STS-123 Processing**<\/font><\/em><\/p>\n Space Shuttle models (adsbygoogle = window.adsbygoogle || []).push({});<\/p>\n **LIVE news updates on Atlantis STS-122 Processing**<\/font><\/em><\/p>\n Article:<\/u><\/em><\/p>\n<\/p>\n STS-120\/Discovery status<\/u><\/em><\/p>\n The issue was spotted during Center of Gravity checks on Discovery inside her OPF-3 (Orbiter Processing Facility) last Thursday. A decision was made \u2013 following a number of cycles to try and seal the leak \u2013 to replace the seals.<\/p>\n \u2018Leakage occurred on 13th of September when vehicle assumed weight on wheels (WOW) for weight and C.G. measurements. First time vehicle has been with WOW and pressurized strut since STS-116,\u2019 noted an overview of the issue.<\/p>\n \u2018Strut pressurized to 453 psi for flight about 1 week ago. Installed seals are ~20 to 24 years old. Installed seals in hydraulic applications (wetted) are good for 27 years. Strut fluid leaking from the RH MLG (Right Hand Main Landing Gear) Strut observed. Leak rate was 285 drops\/hr \u2013 allowable is 1 drop per hour.\u2019<\/p>\n A repair was required, due to the hazard it may have caused during Discovery\u2019s landing at the end of her STS-120 mission, with \u2018excessive leakage causing decreased\/no damping ability of the shock strut during landing (Crit 1\/1 failure mode),\u2019 noted as the problem.<\/p>\n The cause of the leak appears to have been debris on the surface of one of the seals, as opposed to the seals themselves. Regardless, the seals have been removed and sent off for closer inspections. New seals were placed into the strut this morning.<\/p>\n The process of removing the strut to get to the seals for replacement was no easy task. However, United Space Alliance engineers, related shops, and technicians \u2013 ably assisted by a team from Goodrich \u2013 managed to complete the process in one morning, as opposed to a number of days as predicted.<\/p>\n Once the strut was removed from the body of the main gear, the only issue spotted on the seals was a very small particle on one of the four seals that have since been replaced. The strut is now being put back together on the MLG.<\/p>\n This will see the continued hydraulic and pneumatic servicing of the strut, followed by brake installation, wheels, brake hydraulics and instrumentation being connected back into place.<\/p>\n \u2018The replacement strut seals were delivered to the OPF. The vendor and the strut changeout team got an early start this morning 9\/19. We got the RH MLG Strut depressurized and deserviced. Inspected the old seals which I was told from initial inspection were in good shape, however, they have been sent to the M&P folks for further inspection and closer scrutiny,\u2019 noted processing information. <\/p>\n The importance of completing the process ahead of schedule is apparent in memos that have been flying around shuttle managers today, with optimism of managing to complete rollover and mating of Discovery in the Vehicle Assembly Building (VAB) in time to give NASA an opportunity to launch STS-120 on schedule.<\/p>\n \u2018Orbiter rollover from the OPF to the VAB for stacking could occur as early as September 24, provided the strut work (including retest) proceeds nominally,\u2019 noted an earlier memo.<\/p>\n \u2018Based on OPF rollover on September 24, an October 23 launch date is still feasible, although there are no contingency days remaining in the schedule. Everyone needs to continue to work towards their current schedules for an October 23 launch.\u2019<\/p>\n **Book your flight and\/or hotel for STS-120\u2019s launch, call today 1-877-291-0068**<\/font><\/u><\/em><\/p>\n The optimism based on the ever-improving repair schedule even noted that rollover could occur as early as Sunday, saving another day on the flow. <\/p>\n \u2018Looks like they are well ahead of schedule and what remains now is leak checks, brakes, wheel, instrumentation re-assembly,\u2019 added another memo around midday on Wednesday. <\/p>\n \u2018There will be one issue remaining is whether the program determines if we need to do a full Hydraulic retest, and that will be discussed later today. This will require vehicle power and access to the aft compartment and more time.<\/p>\n \u2018However, with the schedule of events going smoother than expected and if full hydraulic retesting is not needed, we could see the OPF to VAB rollover sooner. The vertical flow will now face a challenge (with no contingency days) if the 10\/23 launch date can still be accomplished.\u2019<\/p>\n Further news will follow after the decision by JSC Engineering on the re-test is taken, along with a possible solid rollover date. This decision may be taken by Thursday morning\u2019s Shuttle Standup meeting.<\/p>\n UPDATE: Sunday rollover confirmed.<\/p>\n L2 members<\/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 **STARLIGHT: NEW STS-117 MISSION REVIEW MUSIC VIDEO** \u2013 STS-118 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> -. Discovery will rollover on Sunday morning, following the completion of repair efforts on her right main landing gear strut \u2013 well ahead of schedule. A superb effort by engineers has seen the completion of the changeout of the seals on the strut, with a decision on how much re-testing is required to determine the exact […]<\/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-41595","post","type-post","status-publish","format-standard","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/41595"}],"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=41595"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/41595\/revisions"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=41595"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=41595"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=41595"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}<\/font><\/p>\n
**Ride home through the fire, sparks and plasma of re-entry with Atlantis, Discovery and Endeavour. FOUR Stunning high quality 2hr, 355-400mb Camcorder and HUD videos \u2013 from payload bay closure \u2013 through re-entry with a astronaut held camcorder video \u2013 to post landing \u2013 several more videos showing landing from 90,000 ft also available**<\/em><\/font><\/p>\n
\u2018We replaced those with new seals (the new package was dated 1987) approved by the vendor after inspection. The strut has been re-installed post seal R&R and we are currently doing strut linkage re-assembly to be followed by Hydraulic level servicing.\u2019<\/p>\n
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