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| Issue date | Title | Topic | |
|---|---|---|---|
| 05000298/LER-2016-001 | 27 September 2017 | De-Energized High Pressure Coolant Injection Auxiliary Lube Oil Pump Caused by Relay Failure Results in Loss of Safety Function and a Condition Prohibited by Technical Specifications LER 16-001-01 for Cooper Nuclear Station Regarding De-Energized High Pressure Coolant Injection Auxiliary Lube Oil Pump Caused by Relay Failure Results in Loss of Safety Function, a Condition Prohibited by Tech Specs, and a 10 CFR Part 21 Report | |
| 05000298/LER-2017-004 | 17 August 2017 | Torus to Drywell Vacuum Breaker Failure to Indicate Full Closed Causes Loss of Safety Function LER 17-004-00 for Cooper Nuclear Station Regarding Torus to Drywall Vacuum Breaker Failure to Indicate Full Closed Causes Loss of Safety Function | Time of Discovery |
| 05000298/LER-2017-005 | 17 August 2017 | Traversing In-core Probe In-shield Limit Switch Mounting Failure Results in Common Cause Inoperability of Independent Trains or Channels and Condition Prohibited by Technical Specifications LER 17-005-00 for Cooper Nuclear Station Regarding Traversing In-core Probe In-shield Limit Switch Mounting Failure Results in Common Cause lnoperability of Independent Trains or Channels and Condition Prohibited by Technical Specifications | Time of Discovery |
| 05000298/LER-2017-003 | 24 July 2017 | Mispositioned Control Room Emergency Filter System Supply Fan Damper Causes Loss of Safety Function LER 17-003-00 for Cooper Nuclear Station re Mispositioned Control Room Emergency Filter System Supply Fan Damper Causes Loss of Safety Function | Time of Discovery |
| 05000298/LER-2017-002 | 27 April 2017 | Valve Test Failures Result in Condition Prohibited by Technical Specifications and a Loss of Safety Function LER 17-002-00 for Cooper Nuclear Station Regarding Valve Test Failures Result in Condition Prohibited by Technical Specifications and a Loss of Safety Function | Time of Discovery Anticipated operational occurrence Corrosion bonding |
| 05000298/LER-2017-001 | 5 April 2017 | Residual Heat Removal Minimum Flow Valves OUt of Position Results in Loss of Safety Function and Condition Prohibited by Technical Specifications LER 17-001-00 for Cooper Regarding Residual Heat Removal Minimum Flow Valves Out of Position Results in Loss of Safety Function and Condition Prohibited by Technical Specifications | Time of Discovery Missed surveillance Abnormal operational transient |
| 05000298/LER-2016-008 | 5 January 2017 | Purchase and Installation of Incorrect Actuator Results in a Condition Prohibited by Technical Specifications LER 16-008-00 for Cooper Nuclear Station Regarding Purchase and Installation of Incorrect Actuator Results in a Condition Prohibited by Technical Specifications | |
| 05000298/LER-2016-007 | 19 December 2016 | Isolation of Shutdown Cooling due to Relay Maintenance Results in a Loss of Safety Function LER 16-007-00 for Cooper Nuclear Station Regarding Isolation of Shutdown Cooling due to Relay Maintenance Results in a Loss of Safety Function | Abnormal operational transient |
| 05000298/LER-2016-006 | 19 December 2016 | High Vibration on Control Room Emergency Filter System Fan Results in Inoperability and Loss of Safety Function LER-16-006-00 for Cooper Nuclear Station Regarding High Vibration on Control Room Emergency Filter System Fan Results in Inoperability and Loss of Safety Function | |
| 05000298/LER-2016-004 | 22 November 2016 | Closure of Multiple Main Steam Isolation Valves due to High Flow Signal LER 16-004-00 for Cooper Nuclear Station Regarding Closure of Multiple Main Steam Isolation Valves due to High Flow Signal | Fuel cladding |
| 05000298/LER-2016-003 | 9 November 2016 | Scaffold Construction Places Plant in a Condition Prohibited by Technical Specifications LER 16-003-00 for Cooper Nuclear Station RE: Scaffold Construction Places Plant in a Condition Prohibited by Technical Specifications | Scaffolding |
| 05000298/LER-2016-002 | 27 June 2016 | De-Energized High Pressure Coolant Injection Auxiliary Lube Oil Pump Caused By Light Bulb Failure Results in Loss of Safety Function LER 16-002-00 for Cooper Regarding De-Energized High Pressure Coolant Injection Auxiliary Lube Oil Pump Caused By Light Bulb Failure Results in Loss of Safety Function | |
| NLS2015063, Retraction of Licensee Event Report 2014-005-00, Lube Oil Leak Results in a Potential Condition Prohibited by Technical Specifications and a Potential Loss of Safety Function. | 9 June 2015 | Retraction of Licensee Event Report 2014-005-00, Lube Oil Leak Results in a Potential Condition Prohibited by Technical Specifications and a Potential Loss of Safety Function. | Mission time |
| ML13149A172 | 26 May 2013 | E-mail from Micheal Mulligan to R.Guzman, Pilgrim Evacuation Plan Broken During Blizzard Nemo and Unenforced by the Nrc. | |
| NLS2013015, Special Report, Offgas Treatment System Charcoal Adsorbers Out of Service | 29 January 2013 | Special Report, Offgas Treatment System Charcoal Adsorbers Out of Service | |
| NLS2008058, LER 08-S01-00 for Cooper Regarding Temporary Suspension of Security Measures Due to Tornado Warning | 5 August 2008 | LER 08-S01-00 for Cooper Regarding Temporary Suspension of Security Measures Due to Tornado Warning |