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NASA-LLIS-0082
Lessons Learned - Dynatube Leak Checks
Year: 1992
Abstract: Description of Driving Event:
While dynatube leak checks were completed, manifolds were vented to ambient pressure. This allowed thrusters to leak. After the third flow, engineer positioned ullage valve (V4) to closed, this caused a pressure spike that ruptured the valve burst disk. The engineer was unaware of the failure, which was found during subsequent testing and data review.
While dynatube leak checks were completed, manifolds were vented to ambient pressure. This allowed thrusters to leak. After the third flow, engineer positioned ullage valve (V4) to closed, this caused a pressure spike that ruptured the valve burst disk. The engineer was unaware of the failure, which was found during subsequent testing and data review.
Subject: Energetic Materials - Explosive/Propellant/Pyrotechnic
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T16:13:25Z | |
| date available | 2017-09-04T16:13:25Z | |
| date copyright | 05/08/1992 | |
| date issued | 1992 | |
| identifier other | BJYCQCAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/76745 | |
| description abstract | Description of Driving Event: While dynatube leak checks were completed, manifolds were vented to ambient pressure. This allowed thrusters to leak. After the third flow, engineer positioned ullage valve (V4) to closed, this caused a pressure spike that ruptured the valve burst disk. The engineer was unaware of the failure, which was found during subsequent testing and data review. | |
| language | English | |
| title | NASA-LLIS-0082 | num |
| title | Lessons Learned - Dynatube Leak Checks | en |
| type | standard | |
| page | 2 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1992 | |
| contenttype | fulltext | |
| subject keywords | Energetic Materials - Explosive/Propellant/Pyrotechnic | |
| subject keywords | Hardware | |
| subject keywords | Parts Materials & Processes | |
| subject keywords | Pressure Vessels |