**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 3900 megabytes strong** <\/em><\/p>\n <\/font>**STS-122 MMT Level now into post flight IFA Reviews. **LIVE updates on Discovery STS-124 Processing**<\/em><\/font><\/p>\n <\/u><\/em><\/p>\n<\/p>\n NASA mission patches (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 (all exclusives): *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 STS-122: Hose related news content (all exclusives): *Issue found\/fleet to be checked (December)* \u2013 *Atlantis found to have problem* \u2013 *Managers discuss forward plan* \u2013 *Use of pole to aid retract* \u2013 *Successful Retraction*<\/p>\n STS-122 Post Flight Review:<\/u><\/em><\/p>\n STS-122 is being classed as the \u2018cleanest\u2019 flight \u2013 by way of TPS (Thermal Protection System) health and lack of issues with Atlantis herself \u2013 for many a year. However, the IFA review is a crucial process that is required on several levels. <\/p>\n Firstly, the review aids processing flow requirements to bring Atlantis back to flight readiness, in preparation for her next mission \u2013 STS-125 to service the Hubble Space Telescope. Secondly, any orbiter wide issues found with STS-122 can become a constraint to the next mission \u2013 STS-123 with Endeavour. <\/p>\n In a fitting conclusion to a delayed mission \u2013 due mainly in part to the ECO (Engine Cut Off) sensor system problems \u2013 Atlantis enjoyed a relatively issue free flight, according to the IFA review. <\/p>\n \u2018Mr. Hale congratulated the entire team on the success of the STS-122 mission, which represents a huge investment and sacrifice of time and effort of so many people around the Program,\u2019 noted the latest Stand-up\/Integration report on L2 \u2013 Hale\u2019s last. \u2018It was wildly successful in terms of what was accomplished. <\/p>\n \u2018Folks that prepared the vehicle for flight did an outstanding job. The list of post-flight funnies is remarkably small; this is a credit to the engineering team and all the folks who did hands-on work at the OPF. The propulsion systems operated flawlessly. <\/p>\n \u2018We were outstandingly successful in solving our problems with the ET circuitry (ECO related issues and LH2 Feed-through connector R&R).\u2019<\/p>\n The Ed Mango led ECO sensor system resolution team can now class the issue as closed, with all future tanks now utilizing the soldering of the pins mitigation method on the LH2 Feed-through connector as the baseline. No further issues are expected for the remaining shuttle countdowns. <\/p>\n IFA Review: SRB:<\/u><\/em> <\/p>\n This was caused by a 25 foot long tear in the canopy, meaning the booster hit the ocean at a much higher speed than expected. Root cause evaluations still ongoing. <\/p>\n \u2018Exhibited large hole upon deployment and never able to inflate. Water impact velocity higher than normal. Significant damage to aft skirt assembly,\u2019 noted the IFA Review presentation on the SRBs. <\/p>\n \u2018Nine previous failures of one damaged main parachutes. Anomaly Resolution Team formed. Post-flight inspection of ordnance ring, parachute bags, parachute and frustum interior found no evidence indicative of frustum contact. <\/p>\n \u2018Initial parachute inspection found no obvious areas indicating cause of tear. Detailed damage mapping of parachute on-going. Fault tree in work to establish potential failure modes. Closure efforts include review of pedigree, event times, repair history, and parachute material characterization.\u2019<\/p>\n The damage to the aft skirt assembly is likely to see that element of the booster scrapped, especially after the damage resulted in the hardware leaking hydrazine, after it was recovered from the ocean.<\/p>\n However, this was the only \u2018major\u2019 issue observed with the boosters during their flight, with \u2018No Operations and Maintenance Requirements and Specifications Document (OMRSD) or Launch Commit Criteria (LCC) violations, added to ascent data assessment indicating nominal SRB system performance.\u2019<\/p>\n Classed as \u2018Squawks\u2019 \u2013 several other elements of the booster were focused on, mainly relating to slight TPS (Thermal Protection System) impacts \u2013 all of which are nominal. However, another area of interest also related to the booster parachute system, noted as a \u2018suspect SWAR (Sea Water Activated Release) failure to release.\u2019<\/p>\n The SWAR was fully implemented in 1998 on STS-95, in order to increase diver safety by eliminating need to cut parachute lines. The problem with STS-122\u2019s booster is believed to be associated with a known failure mechanism with pyrotechnic train, when the primer fails to breach three millimetres stainless steel booster closure cup with enough energy to ignite charge in booster.<\/p>\n This issue will undergoing follow-up evaluations, though it is not a constraint to STS-123, given the lack of flight safety risks. <\/p>\n IFA Review: Orbiter Systems: \u2018APU (Auxiliary Power Unit) 3 Drain Line Off-Nominal Heater Cycles: APU 3 Fuel Seal Cavity Drain Line heaters exhibited heater off set-point shifts. Shifts noted on both drain line temperature sensors with corresponding shifts in drain line pressures. A total of four anomalous heater cycles were seen,\u2019 listed one of the IFA review presentations.<\/p>\n \u2018To avoid a heater failure during crew sleep, \u2018A\u2019 heaters were deactivated and the \u2018B\u2019 heaters activated. Most probable cause is the controlling thermostat. Post-Flight Plan:\u00e2\u20ac\u00a2 OV-104: Troubleshoot, and R&R thermostat. OV-105\/103: None.\u2019 <\/p>\n \u2018Fuel Cell 3 O2 Flowmeter Erratic: Fuel Cell 3 O2 flowmeter reading went off scale low for about two minutes, then displayed unreliable and erratic data for remainder of mission. A review of the electrical bus did not show any anomalous indication at the time of the failure. Considered failed, and on-board class 3 FDA limit was inhibited. <\/p>\n \u2018Fuel cell flowmeters failures have been seen before (obsolescence issue). No impact to mission or crew ops. Post-Flight Plan: OV-104: T\/S to verify the failure is in the flowmeter. OV-105\/103: None.\u2019 <\/p>\n \u2018Aft RCS (Reaction Control System) Manifold 5 Heaters Failed: On Flight Day 12, an electrical current spike across all three fuel cells was observed. Within five minutes injector temperatures on L5L, L5D, R5D, R5R began decreasing indicating their respective jet heaters had lost power.\u2019<\/p>\n This issue occurred near the end of Atlantis\u2019 mission, with the venier thrusters in question not required for the deorbit or re-entry phases of the mission.<\/p>\n \u2018The spike observed was consistent with the amperage and duration required to open the 5 amp internal fusible link in the Hybrid Driver of Load Control Assy 3. L5L annunciated fail leak and was auto-deselected by RCS RM. VRCS attitude control was lost; Alt PRCS was used for remainder of flight.<\/p>\n \u2018It is likely there was a short circuit in one of the heaters, the wiring to the heaters, or within the Hybrid Driver itself that cause the observed signatures. Post-Flight Plan: OV-104: T\/S plan in development. OV-105\/103: None.\u2019<\/p>\n IFA Review: Debris: Several camera views caught the stinger falling off the aft of Atlantis, recorded at T-3.463 seconds. <\/p>\n While no damage resulted from the loss of the tile, it will be evaluated for database purposes, along with post flight processing inside the OPF.<\/p>\n Other debris related IFAs \u2013 classed as impacting the vehicle \u2013 all caused nothing more than cosmetic damage. They are listed as:<\/p>\n \u2018Multiple Debris Pieces seen at MET (Mission Elapsed Time) 132 sec. LH2 acreage loss adjacent to Xt 1129 Lo2 feedline base closeout (multiple pieces released). Exceeds mass allowable. Ascent Debris impact to SSV.<\/p>\n \u2018I\/T (Intertank) to LH2 Flange closeout foam loss. Foam loss at I\/T to LH2 flange closeout at 5-6th stringer +Z of \u00e2\u20ac\u201cY thrust panel (MET 85 sec) and 3rd stinger +Z of +Y thrust panel (time of loss unknown). Outside of risk assessment for time of occurrence and frequency of release. Ascent Debris impact to SSV.\u2019 <\/p>\n IFA Review: Flight Software: \u2018Suspect PGSC 3Com Network Card: On Flight Day 11, Orbiter Communications Adapter (OCA) officer reported an intermittent problem with the KFX Payload General Support Computer (PGSC) dropping off the network,\u2019 added the related IFA review presentation.<\/p>\n \u2018Problem persisted until the Ethernet PCMCIA (3Com) card was swapped and system rebooted. No mission impact due to availability of four spare 3Com cards.\u2019<\/p>\n A post flight plan has been activated, which will see the hardware tested. Notably, the presentation adds that, starting with STS-123, new wireless access points will replace 3Com network hardware. <\/p>\n \u2018Backup RPOP Not Receiving TCS Data During Undock: During rendezvous and docking operations, the HHL was operational but its data was not downloaded to the Rendezvous Proximity Operators Program (RPOP) PGSC. <\/p>\n \u2018Post-docking analysis of downlinked RPOP and Trajectory Control Sensor (TCS) data indicated that the backup RPOP\/TCS laptop did not receive TCS data during rendezvous,\u2019 listed the presentation on the other issues.<\/p>\n \u2018The problem was reproduced during rendezvous tools checkout on FD11, and the RS-422 Quatech card was replaced to restore proper operation. No mission impact due to availability of three spare cards and redundant TCS PGSC.\u2019<\/p>\n \u2018Handheld Lidar (HHL) Data Not Feeding Into RPOP: During rendezvous and docking operations, the HHL was operational but its data was not downloaded to the Rendezvous Proximity Operators Program (RPOP) Payload General Support Computer (PGSC). <\/p>\n \u2018During rendezvous tools checkout on FD11, the RS-232 HHL interface cable was replaced in the course of completing the checkout procedure and verifying proper operation. No mission impact due to availability of spare cable and manual workarounds for HHL use.\u2019<\/p>\n IFA Review: Range and Communications:<\/u><\/em><\/p>\n Several presentations also referenced communication issues, some of which relate to the KU Band Antenna and high speed tracking data. <\/p>\n However, one pre-launch communication issue between the range and controllers at the Johnson Space Center (JSC) resulting in a couple of seconds of delay\/latency on the data relay. This gained a large amount of attention on the IFA review presentations.<\/p>\n \u2018During the STS-122 count Cape DRSD (Distributed Range Safety Display) to JSC was experiencing timing delay in excess of two seconds,\u2019 noted unclassified information from the 45th Space Wing\u2019s IFA review report.<\/p>\n \u2018The delay was determined to be within the MOC (not due to circuit). DRSD was rebooted and the excessive delay went away, but it returned less than one hour later.\u2019 <\/p>\n The cause of the issue has already been determined to be the \u2018estimation processor\u2019 and technicians have created a workaround to be in place for STS-123 and subsequent launches. <\/p>\n \u2018During the system start-up the Estimation Processor is overloaded with the task of processing all initialization sequences. Once all sequences have been completed and displays have been initialized, a simple re-initialization of the Estimation Processor resets the timing. <\/p>\n \u2018This workaround will have no effect during launch and only takes one minute to complete. Work around has been tested several times and has proven to reset the timing sequence within expectable limits.\u2019<\/p>\n Hale: Great start to the year: Activation problems with the Columbus module were soon resolved by controllers on the ground, along with minor issues with the video downlink that was not picture perfect during some elements of the mission.<\/p>\n Some confusion remains on the status of Atlantis\u2019 starboard aft radiator retract flex hose \u2013 which required troubleshooting at the pad pre-launch, due to an omega kink during Payload Bay Door closure.<\/p>\n Despite the crew reporting that all four hoses retracted without issue on orbit \u2013 ahead of re-entry \u2013 some unconfirmed reports claim the starboard aft radiator retract flex hose once again kinked. <\/p>\n However, and importantly, the loop did not leak its freon coolant, which was the only concern relating to such a kink in the hose and would have seen the implementation of the loop being isolated during re-entry and landing.<\/p>\n Overall, the health of Atlantis\u2019 TPS was the cleanest since RTF \u2013 despite more Regions Of Interest (ROIs) being noted on this mission, compared to previous RTF missions. Those ROIs were all cleared as not being any issue and were mainly cosmetic.<\/p>\n \u2018(Mr Hale) is impressed by everything, and the results are that we have the Europeans firmly established on the International Space Station,\u2019 added the latest Stand-up. <\/p>\n \u2018The international aspect of this project has come to the forefront, and the IFAs will support us and future projects. Packing on the middeck going up and down was also unbelievable. <\/p>\n \u2018It was a great flight and is a start to a busy year.\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 <\/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, now undergoing post-flight deservicing inside OPF-1 (Orbiter Processing Facility), has already received her expansive mission report. The IFA (In Flight Anomaly) Reviews have already been presented to the all-powerful PRCB (Program Requirements Control Board) \u2013 with the main focus of attention on the failure of one of the Solid Rocket Booster (SRB) parachutes, which […]<\/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-41473","post","type-post","status-publish","format-standard","hentry","category-news"],"acf":[],"_links":{"self":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/41473"}],"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=41473"}],"version-history":[{"count":0,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/posts\/41473\/revisions"}],"wp:attachment":[{"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/media?parent=41473"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/categories?post=41473"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/starpath.global\/blog\/wp-json\/wp\/v2\/tags?post=41473"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}<\/em><\/font>**Click here for sample of L2 menu and content**<\/font><\/em><\/p>\n
**STS-123 L2 Special Build-up in full swing (MOD FRR Presentations and Processing). STS-124 Sub Section Build-Up.
**STS-125 Sub Section Special already over 1000mb in size.
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**LIVE updates on Atlantis STS-125 Processing Flow and STS-122 Post Flight**<\/em><\/font><\/p>\nAs observed on cameras placed on the SRBs \u2013 used to capture ascent damage on the ride uphill, and the booster\u2019s return to splashdown in the Atlantic \u2013 one of the three main parachutes on the left hand booster failed to inflate.<\/p>\n
The SWAR provides a method of disconnecting main parachute from SRB after splashdown, with the immersion in seawater closing an electrical circuit to release a shear pin from the riser about two seconds after immersion. This failed on the right hand booster. <\/p>\n
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Atlantis performed extremely well on orbit, with only a handful of issues reported. Three IFAs have been reviewed, with none a constraint to STS-123\u2019s upcoming launch on March 11.<\/p>\n
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Tagged as the cleanest flight since Return To Flight, ET-125 performed extremely well, added to various other \u2018debris\u2019 hazards associated with Atlantis\u2019 ascent.<\/p>\nSystems Engineering & Integration (SE&I) IFA review presentation noted only eight debris related IFAs, with the focus of attention pointed at a stinger tile that was observed falling after SSME (Space Shuttle Main Engine) ignition.<\/p>\n
\u2018Debris seen at MET 440 sec Impacting Orbiter. LH2 acreage loss aft of +Y bipod. Exceeds mass allowable. Ascent Debris impact to SSV. Debris seen at MET 93 seconds. LO2 umbilical cable tray foam loss (aft of Xt-2058). Exceeds mass allowable. Ascent Debris impact to SSV.<\/p>\n
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A few issues were noted with Atlantis flight software, mainly relating to the Rendezvous Proximity Operators Program (RPOP) and the KFX Payload General Support Computer (PGSC) \u2013 which required rebooting.<\/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
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Bar those already known, such as the slightly protruding blanket on the starboard OMS Pod \u2013 which did not prove to be an issue during re-entry \u2013 the other IFA review presentations epitomised the relatively issue free flight Atlantis enjoyed.<\/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":"