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NASA-LLIS-0636
Lessons Learned – Incorrectly Installed Fitting
Year: 1999
Abstract: Description of Driving Event:
On 7/12/99, a mechanic was performing a verification leak test (using a 2900 psig gaseous nitrogen pressure source) of a 1/2" hand valve when an incorrect fitting blew out. The mechanic erroneously installed a 1/2" AN male fitting into the 1/2" NPT female port of the valve body. The fitting was attached to a high pressure flex hose when the failure occurred. This flex hose had Kellum restraints that prevented damage to equipment and injury to personnel.
On 7/12/99, a mechanic was performing a verification leak test (using a 2900 psig gaseous nitrogen pressure source) of a 1/2" hand valve when an incorrect fitting blew out. The mechanic erroneously installed a 1/2" AN male fitting into the 1/2" NPT female port of the valve body. The fitting was attached to a high pressure flex hose when the failure occurred. This flex hose had Kellum restraints that prevented damage to equipment and injury to personnel.
Subject: Energetic Materials - Explosive/Propellant/Pyrotechnic
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T15:15:58Z | |
| date available | 2017-09-04T15:15:58Z | |
| date copyright | 07/14/1999 | |
| date issued | 1999 | |
| identifier other | MICEQCAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/15107 | |
| description abstract | Description of Driving Event: On 7/12/99, a mechanic was performing a verification leak test (using a 2900 psig gaseous nitrogen pressure source) of a 1/2" hand valve when an incorrect fitting blew out. The mechanic erroneously installed a 1/2" AN male fitting into the 1/2" NPT female port of the valve body. The fitting was attached to a high pressure flex hose when the failure occurred. This flex hose had Kellum restraints that prevented damage to equipment and injury to personnel. | |
| language | English | |
| title | NASA-LLIS-0636 | num |
| title | Lessons Learned – Incorrectly Installed Fitting | en |
| type | standard | |
| page | 2 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1999 | |
| contenttype | fulltext | |
| subject keywords | Energetic Materials - Explosive/Propellant/Pyrotechnic | |
| subject keywords | Ground Equipment | |
| subject keywords | Pressure Vessels | |
| subject keywords | Test & Verification | |
| subject keywords | Test Facility |