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| Issue date | Title | Topic | |
|---|---|---|---|
| 05000323/LER-2017-001 | 3 October 2017 | Relief Valve Leakage Resulting in Inoperable Pressurizer Power Operated Relief Valve LER 17-001-00 for Diablo Canyon, Unit 2, Regarding Relief Valve Leakage Resulting in Inoperable Pressurizer Power Operated Relief Valve | Safe Shutdown Probabilistic Risk Assessment Significance Determination Process |
| 05000323/LER-2016-001 | 28 July 2016 | Reactor Trip Breakers Manually Opened During Shutdown Due to a Control Rod Movable Gripper Fuse Failure LER 16-001-00 for Diablo Canyon, Unit 2, Regarding Reactor Trip Breakers Manually Opened During Shutdown Due to a Control Rod Movable Gripper Fuse Failure | Shutdown Margin |
| 05000275/LER-2015-001 | 11 February 2016 | Both Trains of Residual Heat Removal Inoperable Due to Circumferential Crack on a Socket Weld LER 15-001-01 for Diablo Canyon, Unit 1, Regarding Both Trains of Residual Heat Removal Inoperable Due to Circumferential Crack on a Socket Weld | Boric Acid |
| DCL-15-042, Supplemental Licensee Event Report 1-2014-004-01 for Diablo Canyon, Units 1 and 2 Regarding Actuation of Six Emergency Diesel Generators Due to Loss of Offsite Power | 30 March 2015 | Supplemental Licensee Event Report 1-2014-004-01 for Diablo Canyon, Units 1 and 2 Regarding Actuation of Six Emergency Diesel Generators Due to Loss of Offsite Power | New Project Manager Significance Determination Process |
| DCL-15-041, Supplemental LER 2-13-004-01 for Diablo Canyon, Unit 2 Regarding Technical Specification 3.8.1 Not Met Due to Failed Wire Lug on Emergency Diesel Generator 2-3 | 30 March 2015 | Supplemental LER 2-13-004-01 for Diablo Canyon, Unit 2 Regarding Technical Specification 3.8.1 Not Met Due to Failed Wire Lug on Emergency Diesel Generator 2-3 | |
| DCL-13-034, Licensee Event Report 12-005-00 for Diablo Canyon Regarding Expected Submittal Date | 1 April 2013 | Licensee Event Report 12-005-00 for Diablo Canyon Regarding Expected Submittal Date | Unanalyzed Condition |
| DCL-11-118, LER 11-05-001 for Diablo Canyon Unit 1, Emergency Diesel Generator Actuations Upon Loss of 230 Kv Startup Due to Electrical Maintenance Testing Activities | 8 November 2011 | LER 11-05-001 for Diablo Canyon Unit 1, Emergency Diesel Generator Actuations Upon Loss of 230 Kv Startup Due to Electrical Maintenance Testing Activities | Anticipated operational occurrence |
| DCL-11-119, LER 11-04-001 for Diablo, Unit 1, Regarding Emergency Diesel Generator Actuated Upon 230 Kv Isolation Due to Maintenance Activities on Relay Panel | 8 November 2011 | LER 11-04-001 for Diablo, Unit 1, Regarding Emergency Diesel Generator Actuated Upon 230 Kv Isolation Due to Maintenance Activities on Relay Panel | Anticipated operational occurrence Offsite Circuit |