ENS 40780
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ENS Event | |
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10:30 May 27, 2004 | |
Title | Automatic Safety Injection Function Inadvertantly Blocked |
Event Description | This 8-hour notification is being made to report that in Mode 4, during the start-up of Salem Unit 2, the Automatic Safety Injection function was identified blocked. At 0140 hours0.00162 days <br />0.0389 hours <br />2.314815e-4 weeks <br />5.327e-5 months <br /> on 5/27/04, Salem Unit 2 transitioned from Mode 5 to Mode 4. In Mode 4, Automatic Safety Injection is required per Technical Specification 3.3.2.1. At 0630 hours0.00729 days <br />0.175 hours <br />0.00104 weeks <br />2.39715e-4 months <br /> on 5/27/04, it was discovered that both trains of the Automatic Safety Injection logic were blocked. Technical Specification 3.0.3 was entered. At 0635, Automatic Safety Injection was reinstated to both trains of Safety Injection and Technical Specification 3.0.3 was exited. Salem Unit 2 is currently in Mode 4 with reactor coolant temperature at 320 degrees and reactor coolant pressure at 320 psig. The Reactor Coolant System is being cooled by the 21 Residual Heat Removal loop. During the time period that Automatic Safety Injection was blocked, the required ECCS Pump was available in compliance with Technical Specification 3.5.3. Additionally, the following equipment status existed: 21 Reactor Coolant Pump was cleared and tagged for an oil leak repair, and 22BF19 Main Feed Regulating Valve was cleared and tagged closed for positioner repairs.
There were no personnel injuries or radiological occurrences associated with this event. The licensee has notified the NRC Resident Inspector. |
Where | |
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Salem New Jersey (NRC Region 1) | |
Reporting | |
10 CFR 50.72(b)(3)(v)(D), Loss of Safety Function - Mitigate the Consequences of an Accident | |
Time - Person (Reporting Time:+2.75 h0.115 days <br />0.0164 weeks <br />0.00377 months <br />) | |
Opened: | Rich Desanctis 13:15 May 27, 2004 |
NRC Officer: | Mike Ripley |
Last Updated: | May 27, 2004 |
40780 - NRC Website
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Unit 2 | |
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Reactor critical | Not Critical |
Scram | No |
Before | Hot Shutdown (0 %) |
After | Hot Shutdown (0 %) |
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