ENS 44587
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ENS Event | |
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23:44 Oct 21, 2008 | |
Title | Failure of 250V Dc Hpci Injection Valve Undervoltage Relay |
Event Description | A 250 Volt DC undervoltage relay for HPCI injection valve MO-2301-8 failed. The reason for the failure is still under investigation. The injection valve is a normally closed valve that opens on an initiation signal. The failure of the under voltage relay would prevent the HPCI injection valve (MO-2301-8) from opening and would prevent HPCI from performing its safety function. Pilgrim Station has entered a 14 day LCO due to Technical Specification 3.5.C.2.
The NRC Resident Inspector has been notified. |
Where | |
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Pilgrim Massachusetts (NRC Region 1) | |
Reporting | |
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | |
LER: | 05000293/LER-2008-004 |
Time - Person (Reporting Time:+0.02 h8.333333e-4 days <br />1.190476e-4 weeks <br />2.7396e-5 months <br />) | |
Opened: | Bruce Chenard 23:45 Oct 21, 2008 |
NRC Officer: | Donald Norwood |
Last Updated: | Oct 21, 2008 |
44587 - NRC Website
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Unit 1 | |
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Reactor critical | Critical |
Scram | No |
Before | Power Operation (100 %) |
After | Power Operation (100 %) |
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