ENS 47865
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ENS Event | |
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05:27 Apr 26, 2012 | |
Title | Press Release Issued For Shutdown Of Unit 2 Due To Salp Influx |
Event Description | On April 25, 2012, at 2227 PDT, Diablo Canyon Power Plant (DCPP) U2 was manually taken offline and the reactor shut down due to an influx of sea salp - a small, jellyfish-like organism - in the intake structure. Operators manually started the auxiliary feedwater pumps in accordance with the plant operating procedures.
PG&E will not restart Unit 2 until conditions improve at the intake structure. As previously announced, Unit 1 was safely shut down for a planned refueling and maintenance outage. All systems operated as designed and no unexpected equipment performance issues were noted. The licensee notified the NRC Resident Inspector. The licensee plans on issuing a press release. |
Where | |
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Diablo Canyon California (NRC Region 4) | |
Reporting | |
10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release | |
Time - Person (Reporting Time:+-1.12 h-0.0467 days <br />-0.00667 weeks <br />-0.00153 months <br />) | |
Opened: | Dave Gouveia 04:20 Apr 26, 2012 |
NRC Officer: | Charles Teal |
Last Updated: | Apr 26, 2012 |
47865 - NRC Website
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Unit 2 | |
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Reactor critical | Critical |
Scram | No |
Before | Power Operation (25 %) |
After | Hot Standby (0 %) |
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