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MONTHYEARML24036A1082024-02-0606 February 2024 Pre-submittal Meeting for Palisades Nuclear Plant Power Operations Technical Specifications Administrative Controls and Quality Assurance Program (Presentation) ML23334A1322023-12-0505 December 2023 Pre-submittal Meeting with Holtec for Palisades Nuclear Plant Power Operations Technical Specifications (Presentation) PNP 2023-026, Pre-Submittal Meeting Presentation - Palisades Nuclear Plant License Transfer Application to Support Resumption of Power Operations2023-09-28028 September 2023 Pre-Submittal Meeting Presentation - Palisades Nuclear Plant License Transfer Application to Support Resumption of Power Operations ML23235A1802023-08-29029 August 2023 Public Meeting 08/29/23 - Palisades Nuclear Plant - Return to Power Operations - Exemption to CFR 50.82(a)(2) ML23139A1922023-05-24024 May 2023 Slides for Public Meeting on 5/24/23 PNP 2023-012, Presentation on Regulatory Path to Reauthorize Power Operations2023-03-16016 March 2023 Presentation on Regulatory Path to Reauthorize Power Operations ML23075A3322023-03-16016 March 2023 Containment 2008 ML23075A3312023-03-16016 March 2023 KM Session OL Process February 9, 2023 ML23075A3332023-03-16016 March 2023 Ts/Rg 1.33 V. 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Regarding Request to Extend Enforcement Discretion for Tornado Missle Non-Conformances ML17160A1952017-06-12012 June 2017 Meeting Slides for Pre-Submittal Meeting with Entergy Regarding the Plan for Decommissioning Licensing Actions PNP 2017-017, Notification in Response to Confirmatory Order, EA-15-0392017-05-0404 May 2017 Notification in Response to Confirmatory Order, EA-15-039 ML17080A1782017-03-20020 March 2017 3/20/2017, Meeting Slide Re. Palisades Nuclear Plant License Amendment Request; Application Meeting Cyber Security Plan Milestone 8 Implementation Schedule Change ML16344A0882016-12-0707 December 2016 December 7, 2016, Summary of Public Meeting with Entergy Nuclear Operations, Inc.- Meeting Slides ML16277A6212016-09-28028 September 2016 GSI-191 Closure Plan: September 28, 2016 - Meeting Slides ML16167A3722016-06-23023 June 2016 Nrc'S Annual Performance Assessment of Palisades for 2015 ML15107A3062015-04-14014 April 2015 April 14, 2015, Public Meeting Slides for Primary Coolant System Branch Connection Weld Volumetric Examination Status - Palisades Nuclear Plant ML15107A3072015-04-14014 April 2015 April 14, 2015, Corrected Public Meeting Slides for Primary Coolant System Branch Connection Weld Volumetric Examination Status - Palisades Nuclear Plant ML15093A2902015-04-0303 April 2015 Licensee End-of-Cycle Meeting Slides ML15093A2942015-04-0303 April 2015 NRC Meeting Slides ML15012A3682015-01-12012 January 2015 EA-14-168; Palisades Nuclear Plant Conference Slides ML14175A2842014-06-24024 June 2014 NRC Presentation for Palisades 2013 Annual Assessment Public Meeting ML14175A2992014-06-24024 June 2014 Licensee Presentation for Palisades 2013 Annual Assessment Public Meeting ML13316C4722013-11-14014 November 2013 Palisades Independent Spent Fuel Storage Installation (ISFSI) at Nuclear Power Plants ML13262A4492013-09-23023 September 2013 October 9, 2013, EMA Presentation Slides for Conference Call with Entergy Nuclear Operations ML13190A2552013-07-16016 July 2013 NRC Internet Event Briefing - Palisades Safety Injection Refueling Water Tank (SIRWT) Leak Repair and Inspections ML13193A3302013-07-16016 July 2013 NRC Internet Event Briefing - Palisades Safety Injection Refueling Water Tank (SIRWT) Leak Repair and Inspections ML13140A3582013-05-20020 May 2013 May 23, 2013 NRC Presentation ML13093A1912013-04-0303 April 2013 EOC Public NRC Meeting Slides Final ML13091A1172013-04-0101 April 2013 EOC Licensee Slides for April 2, 2013 Meeting ML13091A2202013-03-29029 March 2013 Public Meeting Slides ML13080A3852013-03-21021 March 2013 NRC Slides for EOC Meeting 4/2/13 ML13010A2822013-01-10010 January 2013 January 12, 2013 Webinar Presentation Slides ML12338A1072012-12-11011 December 2012 NRC Public Meeting Slides for 12-11-12 PNP 2012-109, Public Meeting Slides for December 11, 2012 Meeting2012-12-0707 December 2012 Public Meeting Slides for December 11, 2012 Meeting ML12314A3712012-11-13013 November 2012 NFPA 805 Presubmittal Meeting 11 9 12 Rev 8 ML12255A0092012-09-11011 September 2012 Licensee Slides for Public Meeting September 12, 2012 PNP 2012-084, Transmittal of Public Meeting Slides for 09/12/2012 Meeting2012-09-10010 September 2012 Transmittal of Public Meeting Slides for 09/12/2012 Meeting ML12080A0182012-03-21021 March 2012 Entergy Slides for the 2011 End-of-Cycle Public Meeting on March 21, 2012 2024-02-06
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Palisades Nuclear Plant Trapped in Containment August 6, 2008 Jack Giessner, RIII
Agenda
- Special Inspection Team - Insights and Findings
- Lessons Learned - Inspector Safety
Anatomy of an Accident
- Accidents are almost always the cumulative result of a chain of apparently minor deviations from known standards, practices, and procedures.
Hop Howlett II, Industrial Operators Guide
- This was an Event, not an Accident, that had many of the accident precursors present
The Event (Background)
- Plant shutdown for maintenance
- Containment entry for visual inspection
- Second entry of the evening to finish inspection
The Event (Timeline)
- August 5, 2008: 2000 - Reactor shutdown for control rod drive work
- 2100 First Containment entry for visual inspection, WBGT between 92-98 F
- heat stress index 115 F
- August 6: 0025 Second entry of the evening to finish inspection (Stay time 30 minutes)
- 0030 Phone system goes down (unknown to team)
- 0040 Scaffold team exits, leaves outer door partially open (unknown to team)
- 0053 Airlock exit not successful
- 0100 Attempt at phone failed
- 0115 Escape hatch attempt fails
- 0130 Partial removal of Anti Cs; water bottle use
- 0145 Cycle shield cooling pump discharge valve in attempt to notify CR
- 0155 Another team of scaffolders enters containment and team exits
Personnel Airlock Inner Door Personnel Airlock Outer Door Escape Hatch The Event - Barriers Broken
- Failure to close outer hatch of Personnel Air Lock - lack of procedures; operator aid control
- Phone system down - no backup plan
- Escape hatch failed to operate - material condition; acceptance of deficient issues
- Heat stress control monitor - overall access control
The Event - Barriers Remaining
- Actions to mitigate heat stress - bottled water; removal of Anti-Cs
- Low Dose Area = Cool Area = Area near hatch
- Attempts to signal Control Room
- Timing/Luck - Another Group enters containment Accident does not occur
Special Inspection Team - Insights and Findings
- Containment Access Control - inadequate procedures
- Emergency Escape hatch not being maintained IAW design
- No procedure for operating the hatches +
Training and operator aids ineffective for airlocks
- Heat stress control program - turned over to OSHA per MOU
Lessons Learned - Inspector Safety
- High industrial safety risk evolutions
- You CAN ensure your own safety
- Spend time needed to understand the program (even if there is no direct tie to nuclear safety)
- High industrial safety risk programs
- Confined space
- Heat Stress
- Fall Protection
- Electrical Safety
- Heavy Loads
Lessons Learned - Inspector Safety
- Must be able to do your job - and you must be safe
- Think about surrounding and think about worse case contingencies
Next Week:
Callaway Disputed Violation