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NASA-LLIS-6146
Lessons Learned - Absence Of Explicitly Defined Fluid Property/Composition At The Vehicle/Engine Interface
Year: 2012
Abstract: Design of vehicle propulsion systems requires explicit definition of fluid properties across component interfaces to ensure safety and reliability. The propellant delivery system components are designed and verified to these conditions. During a routine tanking operation on the Space Shuttle system, the inability to verify closure of a valve resulted in a launch scrub. A proper Failure Modes Effect Analysis/Critical Items List (FMEA/CIL) for each component requires explicit definition of fluid properties across component interfaces. Margin demonstration and off nominal component/system testing can be planned and executed to perform risk mitigation when compositions are identified.
Subject: 0.Accident Investigation
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T16:23:06Z | |
| date available | 2017-09-04T16:23:06Z | |
| date copyright | 03/05/2012 | |
| date issued | 2012 | |
| identifier other | TRUQUEAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/86475 | |
| description abstract | Design of vehicle propulsion systems requires explicit definition of fluid properties across component interfaces to ensure safety and reliability. The propellant delivery system components are designed and verified to these conditions. During a routine tanking operation on the Space Shuttle system, the inability to verify closure of a valve resulted in a launch scrub. A proper Failure Modes Effect Analysis/Critical Items List (FMEA/CIL) for each component requires explicit definition of fluid properties across component interfaces. Margin demonstration and off nominal component/system testing can be planned and executed to perform risk mitigation when compositions are identified. | |
| language | English | |
| title | NASA-LLIS-6146 | num |
| title | Lessons Learned - Absence Of Explicitly Defined Fluid Property/Composition At The Vehicle/Engine Interface | en |
| type | standard | |
| page | 2 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;2012 | |
| contenttype | fulltext | |
| subject keywords | 0.Accident Investigation | |
| subject keywords | 1.Ground processing and manifesting | |
| subject keywords | 1.Level II/III requirements definition | |
| subject keywords | 1.Long term sustainability and maintenance planning | |
| subject keywords | 1.Maintenance | |
| subject keywords | 1.Propulsion |