ENS 40151: Difference between revisions
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| event date = 09/11/2003 08:45 CDT | | event date = 09/11/2003 08:45 CDT | ||
| last update date = 09/12/2003 | | last update date = 09/12/2003 | ||
| title = Double Contingency Was Not Maintained | | title = Double Contingency Was Not Maintained for Non-Fissile Nams. | ||
| event text = NRC BULLETIN 91-01 24 HOUR NOTIFICATION | | event text = NRC BULLETIN 91-01 24 HOUR NOTIFICATION | ||
At 0845 on 9/11/03, it was discovered that non-fissile negative air machines (NAMs) were not verified by two individuals to contain approved and properly installed filters, as specified in NCSA GEN-09, "Operation and Maintenance of Negative Air Machines". Procedure CP4-GP-BG2108, "Negative Air Machine and in-place HEPA System Internal Inspection and Filter Replacement", did not adequately flowdown requirements specified in NCSA GEN-09 was revised to make non-fissile portable negative air machines (NAMs) readily available for fissile use in emergency situations. Contrary to requirements specific in NCSA GEN-09, procedure CP4-GP-BG2108 did not include requirements for two individuals to perform independent verification that approved filters are selected and properly installed. This control prevents mass loadings of fissile material that are outside the scope of that analyzed in NCSE KY/S-249. | At 0845 on 9/11/03, it was discovered that non-fissile negative air machines (NAMs) were not verified by two individuals to contain approved and properly installed filters, as specified in NCSA GEN-09, "Operation and Maintenance of Negative Air Machines". Procedure CP4-GP-BG2108, "Negative Air Machine and in-place HEPA System Internal Inspection and Filter Replacement", did not adequately flowdown requirements specified in NCSA GEN-09 was revised to make non-fissile portable negative air machines (NAMs) readily available for fissile use in emergency situations. Contrary to requirements specific in NCSA GEN-09, procedure CP4-GP-BG2108 did not include requirements for two individuals to perform independent verification that approved filters are selected and properly installed. This control prevents mass loadings of fissile material that are outside the scope of that analyzed in NCSE KY/S-249. |
Revision as of 22:25, 1 March 2018
Where | |
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Paducah Gaseous Diffusion Plant Paducah, Kentucky (NRC Region 3) | |
License number: | Gdp-1 |
Reporting | |
Response | |
Time - Person (Reporting Time:+17.85 h0.744 days <br />0.106 weeks <br />0.0245 months <br />) | |
Opened: | S. Skaggs 07:36 Sep 12, 2003 |
NRC Officer: | John Mackinnon |
Last Updated: | Sep 12, 2003 |
40151 - NRC Website | |