ML12089A430
| ML12089A430 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 03/21/2012 |
| From: | Paul Krohn Reactor Projects Region 1 Branch 4 |
| To: | |
| KROHN, PG | |
| Shared Package | |
| ML12089A178 | List: |
| References | |
| Download: ML12089A430 (18) | |
Text
Susquehanna Steam Electric Station Supplemental Inspection Exit and Regulatory Performance Meeting Nuclear Regulatory Commission - Region 1 Berwick, PA March 21, 2012 1
Agenda Opening Remarks Supplemental Inspection Objective and Scope Supplemental Inspection Results and observations PPL Response Action Matrix Outcome Closing Remarks Questions from the Public Adjourn Meeting 2
Reactor Oversight Process Safety Cornerstones Baseline Inspection Results Performance Indicator Results Strategic Performance Areas Safety Cornerstones Baseline Inspection Results Performance Indicator Results Strategic Performance Areas 3
Significance Threshold Action Matrix Significance Threshold Regulatory Response Significance Threshold Action Matrix Significance Threshold Regulatory Response
Action Matrix Concept Licensee
Response
Regulatory
Response
Degraded Cornerstone Multiple Repetitive Degraded Cornerstone Unacceptable Performance All Inputs are Green; Cornerstone Objectives Fully Met 1 or 2 White Inputs (in different cornerstones);
Cornerstone 2 White or 1 Yellow Input; Cornerstone Objectives Met w/
Moderate Degradation in Multiple Yellow Inputs or 1 Red Input; Cornerstone Objectives Met w/ Significant Degradation in Safety Overall Unacceptable Performance; Plants not permitted to Operate w/in this Column; Unacceptable 4
Fully Met Cornerstone Objectives Fully Met Degradation in Safety Performance Degradation in Safety Performance Column; Unacceptable Margin to Safety Increasing safety significance Increasing NRC inspection efforts Increasing NRC/Licensee management involvement Increasing regulatory actions Susquehanna Unit 1
Safety Significant Finding (White)
- Event: Flooding in the Unit 1 condenser bay on July 16, 2010 5
- Cause: Inadequate maintenance and operations procedures
- Risk: Elevated due to loss of the normal heat sink
Safety Significant Performance Indicator
- The Unplanned Scrams performance indicator (Pl) crossed the Green-to-White threshold during the first quarter 2011 threshold during the first quarter 2011.
- Specifically, Unit 1 had four unplanned scrams in a twelve month period.
- April, May, July 2010, and January 2011 6
Supplemental Inspection Inspection Procedure 95002 Objectives:
To provide assurance that the root and contributing causes of risk-significant performance issues are understood.
To independently assess the extent of condition and extent of cause of cause.
To independently determine if safety culture components caused or significantly contributed to the performance issues.
To provide assurance that the licensees corrective actions are sufficient to address the root and contributing causes and prevent recurrence.
7
Supplemental Inspection Inspection Procedure 95002 Areas Covered:
Problem Identification Root Cause Evaluation Corrective Actions Corrective Actions Independently Assess of Extent of Condition and Extent of Cause Safety Culture 8
Supplemental Inspection Conducted February 13 - March 2, 2012 Inspectors: Senior Resident Inspector, Senior Project Engineer, 2 Resident Inspectors, Project Engineer, and Safety Culture Expert Document Review Focus Group interviews Interviews, observations, and verification Independent review of Root Cause Evaluations Related issue review; Extent of Cause and Extent of Condition 9
Inspection Results
- Unplanned Scrams White Performance Indicator Closed 1
All F Obj ti M t
- 1. All Four Objectives Met
- 2. Risk Based Decision Making Implemented
- 3. Implemented New Corrective Action Process 10
Inspection Results
- Condenser Bay Flood White Finding Held Open 3/4Corrective Action and Extent of Condition/Extent of Cause Objectives not met
- Actions taken or planned to correct the issue do not provide the assurance level required to meet the inspection objectives
- Some Corrective Actions were Delayed
- Narrow Scope of Actions taken to address Extent of Condition and Extent of Cause 11
Follow-up Inspection
- Focus on objectives not met:
- 1. Verify Extent of Condition for leaks and Extent of Cause for inadequate maintenance Extent of Cause for inadequate maintenance procedures are appropriately addressed
- 2. Verify adequacy and effectiveness of selected action items related to the procedure quality upgrade project 12
PPL Response and Remarks Timothy S. Rausch Sr. Vice President & Chief Nuclear Offi 13 Officer PPL Susquehanna, LLC
Action Matrix Outcome William Dean - Regional Administrator USNRC Region I Administrator USNRC Region I 14
Action Matrix Concept Licensee
Response
Regulatory
Response
Degraded Cornerstone Multiple Repetitive Degraded Cornerstone Unacceptable Performance All Inputs are Green; Cornerstone Objectives Fully Met 1 or 2 White Inputs (in different cornerstones);
Cornerstone 2 White or 1 Yellow Input; Cornerstone Objectives Met w/
Moderate Degradation in Multiple Yellow Inputs or 1 Red Input; Cornerstone Objectives Met w/ Significant Degradation in Safety Overall Unacceptable Performance; Plants not permitted to Operate w/in this Column; Unacceptable 15 Fully Met Cornerstone Objectives Fully Met Degradation in Safety Performance Degradation in Safety Performance Column; Unacceptable Margin to Safety Increasing safety significance Increasing NRC inspection efforts Increasing NRC/Licensee management involvement Increasing regulatory actions Susquehanna Unit 1
Open to the Public
- The NRC places a high priority on keeping the public and stakeholders informed of its activities.
- At www.nrc.gov, you can:
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- Find public meeting dates and transcripts;
- Read NRC testimony, speeches, press releases, and policy decisions; and
- Access the agencys Electronic Reading Room to find NRC publications and documents.
Contacting the NRC
- Report an emergency
- (301) 816-5100 (call collect)
- Report a safety concern (800) 695 7403 17
- (800) 695-7403
- Allegation@nrc.gov
- General information or questions
- www.nrc.gov
- Select What We Do for Public Affairs
Reference Sources
- Reactor Oversight Process
- http://www.nrc.gov/NRR/OVERSIGHT/ASSESS/index
.html 18 Public Electronic Reading Room
- http://www.nrc.gov/reading-rm.html Public Document Room 800-397-4209 (Toll Free)