Posts Tagged ‘FCV’

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Diligent to the end – Endeavour’s engineers spot 0.005 inch FCV defect


Space Shuttle Program (SSP) manager John Shannon has praised the team responsible for installing the Flow Control Valves (FCVs) on Endeavour, after they spotted a 0.005 inch shim…

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Flow Control Valve Investigation reveals probable cause of failure


A one-year long investigation into the liberation of part of a Flow Control Valve (FCV) poppet during Endeavour’s STS-126 launch in November 2008 has concluded with a recommendation…

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STS-125: Radiator repair working two cracks, FRCS inspections, Swine Flu plan


As engineers create their repair plan for what is now observed to be two cracks in Atlantis’ left radiator panel, borescope inspections have been called (see update in…

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Atlantis suffers slight damage to radiator – FCV plan eases for STS-125


Managers are close to approving a switch to an advanced┬áMay 11 launch date for STS-125, as engineers evaluate damage to Atlantis’ left radiator panel, following an impact from…

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Managers considering May 11 for STS-125 – ET camera/flash troubleshooting


The dual processing flows for Atlantis and Endeavour are proceeding to plan, with the main engineering focus on the ET camera flash system, which is undergoing troubleshooting on…

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NASA updates milestones for Atlantis’ STS-129 mission


With Atlantis and Endeavour now in their dual processing flows for the STS-125 mission to the Hubble Space Telescope, NASA managers have updated plans for shuttle Atlantis’ next…

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STS-119 FCV performance boosts flight rationale for STS-125


Aiding the requirement of flight rationale for STS-125, engineers have found that the three replacement Flow Control Valves (FCVs) that flew on STS-119 suffered from no cracking, following…

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Atlantis rollout to Pad 39A – FCV plan set up for STS-125/400


Atlantis has rolled back out to Pad 39A for her re-aligned STS-125 mission to the Hubble Space Telescope. First motion for the stack was registered at 3:54am local…

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STS-119: Opening TPS inspections complete – several issues being worked


Discovery is completed her opening Thermal Protection System (TPS) inspections on Flight Day 2 of STS-119, as engineers on the ground evaluate ascent imagery and the opening ‘funnies’…

FRR clears STS-119 for March 11 launch, pending SRB resolution


As expected, the Flight Readiness Review (FRR) has cleared Discovery to target a launch at 9:20pm on March 11, following a final review of the Flow Control Valve…

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PRCB boosts FRR opportunity to approve March launch for STS-119


Members of a Special PRCB (Program Requirements Control Board) meeting on Wednesday have once again worked through a vast set of documentation, which concluded with positive results for…

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Progress made towards STS-119 flight rationale – March 11 NET possible


Engineers are scheduled to begin the installation of the three replacement Flow Control Valves (FCVs) into Discovery on Tuesday, following their arrival from Vacco. Meanwhile, managers are preparing…

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STS-119: NASA assess contingency launch dates up to March 17


Several options, including a reduced mission duration with only one EVA, are being considered as a contingency to ensuring STS-119 launches in March – prior to the Soyuz…

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STS-119 replacement FCVs ready to ship in support of March launch


The major effort to facilitate a March launch for shuttle Discovery is continuing on a seven day week, as vendor Vacco prepare to ship the three replacement Flow…

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STS-119 targeting March 12 – pending PRCB and FRR meetings


The latest target for STS-119 is a short launch window, opening March 12, following a meeting between shuttle managers that confirmed the forward plan of replacing Discovery’s three…

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STS-119: March launch possible via FCV replacement and MPS protection


A launch of STS-119 prior to the Soyuz cut out in mid March remains on the cards, as managers prepare to meet on Wednesday for a launch date…

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STS-119: Managers delay launch indefinitely due to FCV concern


Shuttle managers have concluded the Delta Flight Readiness Review (FRR) – one of the longest in shuttle history – by failing to approve flight rationale due to concerns…

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STS-119 FRR touch and go for approving launch date


Another delay to STS-119’s NET (No Earlier Than) launch date is deemed a possible outcome of Friday’s Flight Readiness Review (FRR), with test results – some negative –…

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STS-119: Pad flow picks up for latest launch date target


Shuttle Discovery is back into full launch processing, with the pad flow working to the latest NET (No Earlier Than) launch date target of February 27. The processing…

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STS-119: Marathon PRCB on FCVs moves NET to February 27


Shuttle managers have concluded a special PRCB (Program Requirements Control Board) meeting on the Flow Control Valve (FCV) issue, and decided additional time is required – moving the…