ENS 40869
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ENS Event | |
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05:45 Jul 14, 2004 | |
Title | Rps and Containment Isolation Actuation Due to Low Rpv Level |
Event Description | On July 14, 2004, at 0045 CDT, the Clinton Power Station experienced a drop in RPV [Reactor Pressure Vessel] level from nominally 30 inches to the Level 3 (the RPS and Isolation setpoint). At this time control rods were fully inserted [see Event Notification - #40868], however, the containment isolation valves associated with this setpoint were open, and these valves automatically closed successfully.
Level was restored to normal by automatic makeup from the condensate system. There were no other malfunctions. The cause for the level drop is being investigated. The licensee will notify the NRC Resident Inspector. |
Where | |
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Clinton Illinois (NRC Region 3) | |
Reporting | |
10 CFR 50.72(b)(3)(iv)(A), System Actuation | |
Time - Person (Reporting Time:+-1.83 h-0.0763 days <br />-0.0109 weeks <br />-0.00251 months <br />) | |
Opened: | Bill Carsky 03:55 Jul 14, 2004 |
NRC Officer: | Bill Gott |
Last Updated: | Jul 14, 2004 |
40869 - NRC Website
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Unit 1 | |
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Reactor critical | Not Critical |
Scram | No |
Before | Hot Shutdown (0 %) |
After | Hot Shutdown (0 %) |
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