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NASA-LLIS-0499
Lessons Learned - Pressure Verification During Pressure Systems Operations and Maintenance
Year: 1996
Abstract: Description of Driving Event:
A maintenance team was removing a gate valve from a high pressure (5000 pounds per square inch) nitrogen trailer at the fill end of the trailer. After the valve bolts were removed and the employee tapped on the valve to loosen it, the valve flew off and hit one of the maintenance employees. The employee was thrown 15 feet through the air and against an I-beam, resulting in a fatality. Preliminary information indicated that the system was not under pressure and the valve gauge reading was zero pressure.
[This event occurred during work external to NASA but includes information that is pertinent to NASA operations.]
A maintenance team was removing a gate valve from a high pressure (5000 pounds per square inch) nitrogen trailer at the fill end of the trailer. After the valve bolts were removed and the employee tapped on the valve to loosen it, the valve flew off and hit one of the maintenance employees. The employee was thrown 15 feet through the air and against an I-beam, resulting in a fatality. Preliminary information indicated that the system was not under pressure and the valve gauge reading was zero pressure.
[This event occurred during work external to NASA but includes information that is pertinent to NASA operations.]
Subject: Pressure Vessels
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| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T15:28:58Z | |
| date available | 2017-09-04T15:28:58Z | |
| date copyright | 35408 | |
| date issued | 1996 | |
| identifier other | AWBEQCAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/30179 | |
| description abstract | Description of Driving Event: A maintenance team was removing a gate valve from a high pressure (5000 pounds per square inch) nitrogen trailer at the fill end of the trailer. After the valve bolts were removed and the employee tapped on the valve to loosen it, the valve flew off and hit one of the maintenance employees. The employee was thrown 15 feet through the air and against an I-beam, resulting in a fatality. Preliminary information indicated that the system was not under pressure and the valve gauge reading was zero pressure. [This event occurred during work external to NASA but includes information that is pertinent to NASA operations.] | |
| language | English | |
| title | NASA-LLIS-0499 | num |
| title | Lessons Learned - Pressure Verification During Pressure Systems Operations and Maintenance | en |
| type | standard | |
| page | 2 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;1996 | |
| contenttype | fulltext | |
| subject keywords | Pressure Vessels | |
| subject keywords | Safety & Mission Assurance |