If the first half of 2009 for NASA demonstrated the agency’s unwavering attention to safety, NASA not only continued that trend – upholding the utmost safety standards in the Space Shuttle and International Space Station Programs – during the second half of the year but also placed itself and its various programs in a tremendous [...]
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Pratt & Whitney Rocketdyne engineers have found the application of “tacky tape” – used to seal the throat plugs on the Space Shuttle Main Engines (SSME) since the 1990s – was the initial root cause of 340 leaks on Endeavour’s number one engine during STS-127′s ascent. Meanwhile, three SSMEs are scheduled to be installed on [...]
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A failure investigation team has been created for Endeavour’s Number One Space Shuttle Main Engine (SSME) that was used during STS-127, which was found to have hundreds of leaks in its nozzle tubing during post-flight inspections. The engine – which was passed to fly after suffering from contamination at the pad ahead of flight - thankfully enjoyed a nominal performance [...]
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STS-128 entered into S0007 (launch countdown) operations at 11pm on Friday evening, as engineers at Launch Pad 39A are nearly complete with both standard and non-standard pre-launch processing operations. Meanwhile, NASA managers continue to review past-vehicle and hardware performance ahead of Tuesday morning’s scheduled liftoff – with the L-2 Mission Management Team (MMT) set to [...]
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Although no ill effects were suffered by Endeavour, the problems with her External Tank (ET-131) – both prior and during last month’s launch – called for investigations into the downstream tanks, the latest of which is due to fly with Discovery later this month. Thanks to those evaluations, additional confidence has been gained ahead of [...]
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Endeavour has concluded her STS-127 mission by returning to her home base at the Kennedy Space Center (KSC) in Florida. She landed at 10:48am local time on Flight Day 17 of the highly successful mission to the International Space Station (ISS). One item of interest – relating to observed debris near the vehicle – was [...]
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STS-127 is coming to the end of another highly successful mission for the shuttle program, as the crew prepare for one of two attempts to land at the Kennedy Space Center (KSC) on Friday – following the clearance of the vehicle’s Thermal Control System (TPS). With LiOH consumables limiting to a Sunday return deadline, Saturday [...]
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Following the conclusion of STS-127 docked phase of the mission, Flight Day 15 involved a Late Inspection survey on Endeavour’s Thermal Protection System (TPS). Meanwhile, an investigation into the foam losses from External Tank ET-131 during Endeavour’s ascent has indentified a leading candidate for why a large amount of foam shed from the Intertank.
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STS-127 has concluded it’s fifth and final EVA, following the pacy completion of EVA-5′s tasks. Meanwhile, at Launch Pad 39A, engineers have completed turnaround procedures to prepare the pad for the arrival of the STS-128 payload on Friday and Discovery early next week.
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Chris ‘Chuck Norris’ Cassidy and Tom Marshburn have completed EVA-4 to finalize the replacement of the P6 batteries, following the earlier termination of EVA-3. Meanwhile, a Russian Progress resupply vehicle has launched from the Baikonur Cosmodrome in Kazakhstan, carrying 2.5 tons of cargo to the International Space Station.
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The foam liberation from Endeavour’s External Tank (ET-131) intertank may have been a one-off event, as all 26 pull tests on ET-132′s intertank show no signs of weakness in the tank set to fly with Discovery next month. However, minor damage was sustained on the tank after a tube-lock broke loose and fell from scaffolding [...]
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STS-127 Spacewalkers Dave Wolf and Tom Marshburn have completed EVA-2, following robotic work to handover the Integrated Cargo Carrier-Vertical Light Deploy (ICC-VLD) to the Space Station Remote Manipulator System (SSRMS). Meanwhile, Endeavour has been cleared for re-entry following the DAT (Damage Assessment Team) evaluations on the orbiter’s TPS (Thermal Protection System), while Discovery’s ET-132 intertank [...]
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Endeavour’s Dave Wolf and the ISS’s Tim Kopra ventured outside the Shuttle/Station complex on Saturday and completed the first of five EVAs (spacewalks) scheduled for the STS-127 mission. Meanwhile, the Mission Management Team (MMT) continues to monitor the Potassium Hydroxide (KOH) levels and operating temperature of Fuel Cell 3 on Endeavour as the docked portion of the [...]
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Endeavour has docked with the International Space Station (ISS) on Flight Day 3, following a stunning RPM (Rbar Pitch Maneuver) – allowing engineers on the ground to make extensive evaluations into the orbiter’s Thermal Protection System (TPS). So far, engineers expect to see only minor cosmetic damage on Endeavour’s heatshield, following several debris events during her [...]
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Flight Day 2 for the crew of STS-127 focused on carrying out inspections of Endeavour’s Thermal Protection System (TPS), following Wednesday’s launch enroute to the International Space Station (ISS). Several debris events were noted during ascent, with ET photography showing numerous areas of missing foam on ET-131 – especially at the intertank region.
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Endeavour finally got a break from the weather and launched on the sixth attempt to mark the begining of STS-127. A number of debris events could be seen on the ET Cam during ascent, but it will take a few days to check to see if they caused any damage of note. STS-127 will include [...]
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Shuttle orbiter Endeavour was again ready to launch to the International Space Station. However, poor weather again put pay to the fifth launch attempt for STS-127, moving launch to Wednesday. Meanwhile, the results of the Ground Umbilical Carrier Plate (GUCP) investigation appear to have been validated via Sunday’s leak-free “near-complete duration” tanking.
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The Mission Management Team (MMT) have declared they require more time to evaluate data from overnight lightning strikes on the pad. STS-127 was tracking a Saturday evening launch attempt (7:39:35 pm local) to the International Space Station (ISS). The next launch attempt will take place on Sunday, pending engineering data on the strikes.
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Endeavour is now proceeding through the complex ballet of S0007 Launch Countdown operations for Saturday’s launch attempt of STS-127 to the International Space Station (ISS). Meanwhile good news has been reported on the damage sustained by Atlantis’ Window 5 (Pilot window), with mold impression results revealing the defects do not breach the unacceptable depth threshold, [...]
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As STS-127 prepares to enter S0007 Launch Countdown operations on Wednesday night, engineers have carried out repairs on areas of the External Tank (ET-131) Thermal Protection System (TPS) foam, and what appears to be a chip on the left hand Solid Rocket Booster (SRB). All areas are deemed as minor and should be cleared for [...]
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