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NASA-LLIS-1091

Lessons Learned – Synchronizing Customer Requirements with Service Provisions

contributor authorNASA - National Aeronautics and Space Administration (NASA)
date accessioned2017-09-04T16:42:27Z
date available2017-09-04T16:42:27Z
date copyright07/15/1999
date issued1999
identifier otherVRUEQCAAAAAAAAAA.pdf
identifier urihttps://yse.yabesh.ir/std/handle/yse/105754
description abstractDescription of Driving Event:
During pre-operations for the 5A US Lab Closed Hatch Environmental Control & Life Support System/Thermal Control System (ECLSS/TCS) testing, a water separator fault occurred in the Common Cabin Air Assembly (CCAA). The inlet ORU was pulled and found to be wet inside. Three to four ounces of water were noted on the rack floor under the separator/heat exchanger. A small amount of water was found inside the separator but not enough to touch electronics. Water was also found in other areas (hydroflow fitting and coupler of the inlet hose and the inside of the inlet).
Root cause: The Test Procedure (TP) and Test Preparaton and Restoration Document (TP&RD) were not synchronized. The TP&RD placed a valve in series between the water separator and the GSE collection tank. The TP&RD also, appropriately, had the valve closed to keep water in the line after it was filled and before water separator was started. The TP did not open the valve before initaiation of water separator operations. The TP&RD & TP WERE NOT carefully reviewed for complete integration.
languageEnglish
titleNASA-LLIS-1091num
titleLessons Learned – Synchronizing Customer Requirements with Service Provisionsen
typestandard
page3
statusActive
treeNASA - National Aeronautics and Space Administration (NASA):;1999
contenttypefulltext
subject keywordsConfiguration Management
subject keywordsFlight Equipment
subject keywordsFlight Operations
subject keywordsGround Equipment
subject keywordsGround Operations
subject keywordsHardware
subject keywordsIndustrial Operations
subject keywordsLaunch Process
subject keywordsParts Materials & Processes
subject keywordsPolicy & Planning
subject keywordsRange Operations
subject keywordsResearch & Development
subject keywordsRisk Management/Assessment
subject keywordsSafety & Mission Assurance
subject keywordsTest & Verification
subject keywordsTest Article
subject keywordsTest Facility


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