NASA-LLIS-0082
Lessons Learned - Dynatube Leak Checks
active, Most Current
| Organization: | NASA |
| Publication Date: | 8 May 1992 |
| Status: | active |
| Page Count: | 2 |
scope:
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.
Document History
NASA-LLIS-0082
May 8, 1992
Lessons Learned - Dynatube Leak Checks
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...
References
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