ENS 40146
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ENS Event | |
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22:46 Sep 10, 2003 | |
Title | Unanalyzed Condition Due to a Potential Break in Fire Protection Water System |
Event Description | Potential break of Fire Water Main in Admin Bldg could cause both divisions of Safe Shutdown equipment to be inoperable by flooding the battery rooms for #11 & 12 125VDC Batteries. Vulnerable section of piping has been isolated to eliminate the flooding concern. Fire Protection compensatory actions have been established in accordance with the site Fire Protection Program.
The licensee informed the NRC resident inspector.
Monticello is retracting the event reported based on evaluations which indicate that the fire main is not considered a potential flooding source. Additional evaluations are ongoing, and issues will be entered into the station's corrective action program. The licensee has notified the NRC Resident Inspector. Notified R3DO (Hills) |
Where | |
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Monticello Minnesota (NRC Region 3) | |
Reporting | |
10 CFR 50.72(b)(3)(ii)(B), Unanalyzed Condition | |
Time - Person (Reporting Time:+-1.73 h-0.0721 days <br />-0.0103 weeks <br />-0.00237 months <br />) | |
Opened: | Chet Desmarais 21:02 Sep 10, 2003 |
NRC Officer: | Howie Crouch |
Last Updated: | Nov 7, 2003 |
40146 - NRC Website
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Unit 1 | |
---|---|
Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
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