NASA-LLIS-6149
Lessons Learned - Don’t Purge Dead-Headed Hydrogen Lines With Helium Downstream Of Source
active, Most Current
| Organization: | NASA |
| Publication Date: | 9 March 2012 |
| Status: | active |
| Page Count: | 2 |
scope:
Residual hydrogen in the fill and drain line during the terminal count down sequence could lead to a catastrophic failure. The best practice is to connect the purge line to the propellant line as closely as possible to the dead headed end of the line to ensure complete purging on the line.
Document History
NASA-LLIS-6149
March 9, 2012
Lessons Learned - Don’t Purge Dead-Headed Hydrogen Lines With Helium Downstream Of Source
Residual hydrogen in the fill and drain line during the terminal count down sequence could lead to a catastrophic failure. The best practice is to connect the purge line to the propellant line as...
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